← Commit history
.gitignoreadded+7
@@ -0,0 +1,7 @@+/target/+.scratch/++# Test fixtures use Windows-shaped paths; on Linux those become literal+# filenames in the repo root. Never commit them.+C:*+/dist/
BRIDGE_VERSIONadded+1
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Cargo.tomladded+61
@@ -0,0 +1,61 @@+[package]+name = "swx-bridge"+version = "0.3.3"+edition = "2021"+rust-version = "1.80"+description = "Adom SOLIDWORKS bridge — swx_* verbs over the SOLIDWORKS COM API, as a single native binary"+license = "MIT"+publish = false++# lib + bin: the bin is a thin `swx_bridge::run()` wrapper so the integration+# tests in tests/ can reuse the crate's own HTTP client / protocol types while+# still driving the REAL compiled binary (CARGO_BIN_EXE_swx-bridge).+[lib]+name = "swx_bridge"+path = "src/lib.rs"++[[bin]]+name = "swx-bridge"+path = "src/main.rs"++[dependencies]+# tiny_http: small blocking HTTP/1.1 server (the stack the official hello-rust+# sample bridge uses). No TLS, no async runtime — ab talks plain loopback HTTP+# at a few requests per second.+tiny_http = "0.12"+# serde + serde_json: the {"command","args"} envelope in, JSON verb results+# out, and the JSON-lines com-host protocol. serde_json::Value is the whole+# data model — the response shapes are dynamic by design (they mirror what the+# COM host returns), so nothing here is worth a derive struct except Command.+serde = { version = "1", features = ["derive"] }+serde_json = "1"++[target.'cfg(windows)'.dependencies]+# windows: late-bound IDispatch (GetIDsOfNames + Invoke), GetActiveObject,+# CoCreateInstance, VARIANT/SAFEARRAY marshalling. The COM layer is the whole+# reason this bridge exists on Windows.+windows = { version = "0.62", features = [+    "Win32_Foundation",+    "Win32_System_Com",+    "Win32_System_Ole",+    "Win32_System_Variant",+    # Threading: the com-host watchdog opens the parent process to check it is+    # still alive, so a hard-killed server leaves no orphan holding a COM object.+    "Win32_System_Threading",+] }+# winreg: App Paths lookup + HKLM\SOFTWARE\SolidWorks version enumeration.+# Safe wrapper over the registry API — cheaper than hand-rolling RegOpenKeyExW+# and its UTF-16 buffer dance for two reads.+winreg = "0.56"++[profile.release]+# Size-optimized, matching the hello-rust sample: this exe ships inside the+# bridge zip on the wiki, so smaller = faster installs.+opt-level = "z"+lto = true+codegen-units = 1+strip = true+# NOT panic="abort" (the hello-rust sample uses it): the com-host child catches+# panics with catch_unwind and answers them as ordinary errors, which needs+# unwinding. A late-bound COM call meeting something unexpected must cost one+# verb, not the user's whole SOLIDWORKS session.
LICENSEadded+21
@@ -0,0 +1,21 @@+MIT License++Copyright (c) 2026 Adom Industries, Inc. and contributors++Permission is hereby granted, free of charge, to any person obtaining a copy+of this software and associated documentation files (the "Software"), to deal+in the Software without restriction, including without limitation the rights+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell+copies of the Software, and to permit persons to whom the Software is+furnished to do so, subject to the following conditions:++The above copyright notice and this permission notice shall be included in all+copies or substantial portions of the Software.++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE+SOFTWARE.
bridge.jsonadded+193
@@ -0,0 +1,193 @@+{+  "manifest_version": 1,+  "name": "solidworks",+  "displayName": "SOLIDWORKS",+  "version": "0.3.3",+  "description": "Bridge for SOLIDWORKS desktop CAD \u2014 create and open documents, a modeling DSL, file management (find/open/save/export/Pack and Go), custom properties, BOM generation, design analysis (mass properties, bodies, parameters, interference, rebuild health) and background window/dialog etiquette, over the SOLIDWORKS COM API. Single native binary: no interpreter, no PowerShell, ~10ms cold start.",+  "author": "Adom Inc.",+  "license": "MIT",+  "homepage": "https://wiki.adom.inc/adom/adom-bridge",+  "docs": "https://wiki.adom.inc/adom/solidworks-bridge",+  "spawn": {+    "kind": "exe",+    "entrypoint": "swx-bridge.exe",+    "port": 0,+    "healthEndpoint": "/status",+    "stopMethod": "kill",+    "killImageName": "swx-bridge.exe"+  },+  "verbPrefixes": [+    "swx_"+  ],+  "verbs": [+    "swx_bom",+    "swx_close_doc",+    "swx_com_eval",+    "swx_describe",+    "swx_docs",+    "swx_export",+    "swx_find_files",+    "swx_interference",+    "swx_mass_properties",+    "swx_open",+    "swx_pack_and_go",+    "swx_progress",+    "swx_props_get",+    "swx_props_set",+    "swx_readiness",+    "swx_rebuild_check",+    "swx_save",+    "swx_screenshot",+    "swx_start",+    "swx_state",+    "swx_status",+    "swx_stop",+    "swx_uninstall",+    "swx_new_document",+    "swx_import",+    "swx_save_as",+    "swx_get_app_state",+    "swx_document_info",+    "swx_activate_document",+    "swx_close_all_documents",+    "swx_reset_workspace",+    "swx_kill",+    "swx_window_info",+    "swx_dismiss_blocking_dialogs",+    "swx_close_window",+    "swx_check_recovery",+    "swx_action_ledger",+    "swx_verb_times",+    "swx_set_driving_badge",+    "swx_design_info",+    "swx_get_parameters",+    "swx_set_parameter",+    "swx_inspect_bodies",+    "swx_run_macro",+    "swx_run_script",+    "swx_add_component",+    "swx_get_preferences",+    "swx_set_preference",+    "swx_cloud_status",+    "swx_show_part",+    "swx_show_assembly",+    "swx_show_drawing",+    "swx_export_step",+    "swx_export_iges",+    "swx_export_stl",+    "swx_export_3mf",+    "swx_export_glb",+    "swx_export_sat",+    "swx_export_parasolid",+    "swx_export_pdf",+    "swx_export_dxf",+    "swx_export_dwg"+  ],+  "statusVerb": "swx_status",+  "risk": "exec",+  "uninstall": "swx_uninstall",+  "updateManifestUrl": "https://wiki.adom.inc/api/v1/pages/solidworks-bridge/files/adom-bridge-solidworks-manifest.json",+  "timeouts": {+    "default": 120,+    "verbs": {+      "start": 300,+      "open": 300,+      "export": 300,+      "pack_and_go": 600,+      "bom": 300,+      "interference": 600,+      "rebuild_check": 300,+      "find_files": 180,+      "new_document": 180,+      "import": 420,+      "save_as": 420,+      "run_script": 420,+      "inspect_bodies": 180,+      "design_info": 180,+      "get_parameters": 240,+      "set_parameter": 420,+      "activate_document": 180,+      "close_all_documents": 240,+      "reset_workspace": 420,+      "show_part": 600,+      "show_assembly": 600,+      "show_drawing": 600,+      "state": 180,+      "export_step": 300,+      "export_iges": 300,+      "export_stl": 300,+      "export_3mf": 300,+      "export_glb": 300,+      "export_sat": 300,+      "export_parasolid": 300,+      "export_pdf": 300,+      "export_dxf": 300,+      "export_dwg": 300,+      "kill": 240,+      "window_info": 120,+      "dismiss_blocking_dialogs": 180,+      "close_window": 120,+      "check_recovery": 180,+      "cloud_status": 90,+      "get_preferences": 90,+      "set_preference": 90,+      "get_app_state": 90,+      "document_info": 120,+      "action_ledger": 20,+      "verb_times": 20,+      "set_driving_badge": 120,+      "close_doc": 180+    }+  },+  "detect": {+    "hostApp": "SOLIDWORKS",+    "appPathsExe": "SLDWORKS.exe",+    "paths": {+      "windows": [+        "%ProgramFiles%\\SOLIDWORKS Corp\\SOLIDWORKS\\SLDWORKS.exe",+        "%ProgramFiles%\\SOLIDWORKS Corp\\*\\SOLIDWORKS\\SLDWORKS.exe",+        "%ProgramFiles%\\Dassault Systemes\\SOLIDWORKS\\SLDWORKS.exe",+        "%ProgramFiles%\\Dassault Systemes\\SOLIDWORKS 3DEXPERIENCE*\\SOLIDWORKS\\SLDWORKS.exe",+        "%ProgramFiles%\\Dassault Systemes\\*\\SOLIDWORKS\\SLDWORKS.exe"+      ]+    },+    "hostAppOptionalVerbs": [+      "readiness",+      "describe",+      "status",+      "find_files",+      "progress",+      "uninstall",+      "state",+      "action_ledger",+      "verb_times"+    ]+  },+  "dependencies": {+    "solidworks": ">=2024"+  },+  "category": "MCAD",+  "tags": [+    "solidworks",+    "mcad",+    "cad",+    "bom",+    "step",+    "mass-properties",+    "modeling",+    "fusion-parity"+  ],+  "platforms": {+    "windows": {+      "supported": true+    },+    "macos": {+      "supported": false,+      "reason": "SOLIDWORKS desktop is Windows-only; the bridge drives its COM API."+    },+    "linux": {+      "supported": false,+      "reason": "SOLIDWORKS desktop is Windows-only; the bridge drives its COM API."+    }+  }+}
docs/ECOSYSTEM-TABLE.mdadded+236
@@ -0,0 +1,236 @@+# Where swx stands in the ecosystem++**swx v0.3.0** measured against the Adom **Fusion 360 bridge v1.9.341** (the gold standard we mirror)+and against every public SOLIDWORKS MCP server we could find · written 2026-09-03++## Executive summary++- **swx is the only SOLIDWORKS implementation here with a published live-run record.** Three runs+  against a real *SOLIDWORKS Design Professional for Makers 2026* install (22-aborted, 120/9, then+  **125 passed / 5 failed**), 19 verbs proven end to end, with measured p90 timings. One competitor+  (SolidPilot) also claims live validation and is credible about it; the other three are explicit that+  most or all of their tools are unvalidated, mock, or hobby-grade.+- **On raw modeling breadth we are behind SolidPilot** — its sketch/feature/assembly/drawing surface is+  deeper than ours and it is the most mature project in this space by a wide margin.+- **On safety we are ahead of all five, and alone.** No other project has a write gate. swx writes are+  deny-by-default at a single choke point, enforced *independently* at two layers, hardened over eight+  adversarial review rounds, and the posture held through every live run — three times the bridge failed+  CLOSED rather than touch the wrong document.+- **Our other unique strengths:** BOM-first and configuration-aware design (BOM aggregates per+  *(file, configuration)* pair — nobody else models this); native GLB with no optimisation service;+  an action ledger plus measured per-verb timings; census-not-dismiss dialog etiquette with+  `neverAutoAnswer` classes; and real host-ecosystem integration (Adom Bridge verbs, the user's+  Activity Log, a shipped skill) where every competitor is a bare MCP server for Claude Desktop.+- **Our real gaps, stated plainly:** no cloud/3DEXPERIENCE document access (21 Fusion verbs; a separate+  OAuth project of roughly the size of the Fusion bridge's APS work); assemblies-with-components,+  drawings and 2D exports are mock-only because the Makers edition would not let an assembly be+  populated; and there is no in-process scripting host — a typed JSON DSL stands in.+- **Launch was our headline "cannot", and that changed today.** `CoCreateInstance` returns+  `CO_E_SERVER_EXEC_FAILURE` on the Connected editions, but a sanctioned launch path via the+  3DEXPERIENCE shortcut chain (`CATSTART.exe` → `SWXDesktopLauncher`) was discovered 2026-09-03.+  Implementation is in progress and **not yet live-proven**.+- **Scripting has a second route now too:** SOLIDWORKS `RunMacro2` for `.swp` VBA macros, VSTA, and C#+  add-ins are **under investigation** — with the caveat that the Makers edition restricts third-party+  add-ins while still running macros. Four of the five competitors already lean on VBA; we do not yet.+- **Licensing is simple and decision-relevant:** exactly **one** copyleft player — SolidPilot is+  **AGPL-3.0** with a paid commercial option — and everything else, ours included, is **MIT**. We can+  read and learn from SolidPilot; we must not vendor its code.+- **Electronics is not a gap.** 51 of the Fusion bridge's 132 verbs are Fusion Electronics, EAGLE+  libraries, or Autodesk-specific plumbing. SOLIDWORKS has no concept to bridge to, and no competitor+  attempts it either.++## How to read the cells++| Mark | Means |+|---|---|+| **✓ live** | Executed against a real, licensed CAD install and observed to do what it claims. |+| **✓** | Built and shipped, or claimed by the project's own README. Evidence level is stated per row. |+| **⚠ mock** | Built and mock-tested only; never executed live in any form. |+| **partial** | Some of the capability, materially incomplete. |+| **✗** | Absent. |+| **n/a** | No concept exists to bridge to in that product. |+| **WIP** | Route identified, implementation in progress, not yet proven. |+| **?** | Could not be determined from the repository. |++Evidence discipline: for **Fusion bridge** and **swx**, cells come from source we hold — the Fusion+bridge's own `describe.py` catalog (133 entries, 132 real verbs) and `docs/FUSION-PARITY-REPORT.md`.+For every competitor column, cells are **read-from-README** unless the row note says otherwise. Nobody+in the competitor set was installed or run. Licences and star counts were verified against the GitHub+API on 2026-09-03, not read off a badge.++## The master table++35 capability rows × 7 implementations. Verb counts: Fusion bridge **132**, swx **60**,+SolidPilot ~**46 tools**, vespo92 ~**30+**, bartels **122**, Schildkraut **~16 tools + 100+ VBA+templates**, alisamsam **22**.++| # | Capability | Fusion bridge | **swx v0.3** | SolidPilot **(AGPL-3.0!)** | vespo92 (MIT) | bartels (MIT) | Schildkraut (MIT) | alisamsam (MIT) |+|---:|---|---|---|---|---|---|---|---|+| 1 | Session lifecycle — attach, stop, kill | ✓ | **✓ live** attach · ⚠ mock stop/kill | ✓ attach | ? | ✓ attach | ? | ✓ attach |+| 2 | Launch the CAD application (and install it) | ✓ launch + silent install | **WIP** — refused by SOLIDWORKS; 3DEXPERIENCE chain found 2026-09-03 | ✓ claims COM launch | ✗ | ✗ needs SW already open | ? | ✗ needs running instance |+| 3 | Requires an in-app add-in | yes (3 verbs to manage it) | **no — out-of-process COM** | no (C# COM server) | no | no | no | no |+| 4 | Open a local file · disk discovery | ✓ open · ✗ discovery (cloud-native) | **✓ live** open · **✓** `find_files` | ✓ open · ✗ | ✓ (untested) | ✓ | ✓ | ✓ open · ✗ |+| 5 | Create a new document | ✗ (docs arrive from cloud/import) | **✓ live** | ✓ part + assembly | ✓ (untested) | ✓ | ✓ | ✓ part + assembly |+| 6 | Save / Save As **with overwrite protection** | ✓ cloud save · ✗ overwrite guard | **✓ live** save_as · **✓ overwrite guard (unique)** | ✓ save · ✗ guard | ✓ (untested) · ✗ guard | ✓ · ✗ guard | ✓ · ✗ guard | ✓ · ✗ guard |+| 7 | Cloud document store — search, list, open, up/download | ✓ 21 verbs (APS Data Management) | **✗ lacking** — `swx_cloud_status` returns the honest probe | ✗ | ✗ | ✗ | ✗ | ✗ |+| 8 | Cloud / vendor sign-in + OAuth | ✓ 9 verbs (incl. 2FA, web sign-in) | ✗ lacking | ✗ | ✗ | ✗ | ✗ | ✗ |+| 9 | Parametric modeling — sketch → feature | ✓ (Python script in-process) | **✓ live** typed DSL (50×30×20 solid, p90 10.2s) | **✓ live** — deepest surface here | partial (basic ops only) | ✓ claimed | ✓ via VBA templates | ✓ basic |+| 10 | In-process scripting host (arbitrary code) | ✓ Python `eval` inside Fusion | **adapted** — typed JSON DSL, validated pre-COM; `swx_com_eval` escape hatch | ✗ by design (deterministic compiler) | ✗ | ✗ | ✗ | ✓ `execute_python` in SW context |+| 11 | Macros / VBA — generate, record, execute | n/a (Fusion has no VBA) | **WIP** — `RunMacro2` / VSTA / C# add-in under investigation | ✗ explicitly unsupported | partial (gen works, exec untested) | ✓ | **✓ strongest** (record/export/execute + 100+ templates) | ✗ |+| 12 | Assemblies — insert components, mates | ✓ via script | ⚠ mock — `AddComponent5` returned Nothing on this edition | **✓ live** insert + mate + diff | ✗ | ✓ claimed | ✓ via VBA | partial (create doc only) |+| 13 | Drawings — create, views, dimensions | ✗ no drawing verbs | partial — creation **✓ live**, views/dims not built | **✓ live** 9 tools; 9 real drawings reconstructed | ✓ (untested) | ✓ claimed | ✓ via VBA | ✗ |+| 14 | Import neutral CAD (STEP etc.) | ✓ | **✓ live** (p90 7.8s) | ✓ via 3D Interconnect | ? | ? | ? | ✗ |+| 15 | Export 3D — STEP/IGES/STL/3MF/SAT/Parasolid | ✓ 8 formats | **✓ live** 6 proven; 17 formats in table; OBJ refused by SOLIDWORKS | ✓ STEP/IGES/STL | ✓ (untested) | ✓ | ✓ | ✗ none |+| 16 | Export **native GLB** (web 3D) | ✓ but needs an optimisation service | **✓ live, direct — unique** | ✗ | ✗ | ✗ | ✗ | ✗ |+| 17 | Export 2D / document — PDF, DXF, DWG | ✓ DXF/DWG · ✗ PDF | ⚠ mock all three (refused for a part; untested from a drawing) | ✓ PDF/DWG/DXF | ✓ (untested) | ✓ | ✓ PDF | ✗ |+| 18 | BOM | ✓ assembly + electronics BOM | ⚠ mock — **but per *(file, configuration)*, the richest design here** | ✗ on the roadmap | ✗ | ✗ | ✓ table insertion | ✗ |+| 19 | Mass / physical properties | ✓ | **✓ live** (aluminium, 81 g agreeing) | **✓ live** (verified ≤1%) | ✓ (untested) | ✓ claimed | ✓ claimed | ✗ |+| 20 | Design-health — interference detection, rebuild census | ✗ neither | partial — interference ⚠ mock (object confirmed live), `rebuild_check` built | partial (`analyze_model`/`verify_state`; no interference) | ✓ (untested) | ✗ explicitly not yet | ✓ via VBA | ✗ |+| 21 | Parameters / dimensions — read **and drive** | ✓ read | **✓ live** — drove a dimension to 25 mm, model moved | ✓ `modify_dimension` | ✓ (untested) | ✓ claimed | ✓ equations | ✗ |+| 22 | Custom properties (file and per-configuration) | partial (buried in the attribute model) | **✓** `props_get`/`props_set` | ✗ | ✗ | ? | ✓ | ✗ |+| 23 | Configurations / design tables | ✗ no equivalent concept | ✓ configuration-aware (BOM, properties) · ✗ design tables | ✗ | partial (`vba_configurations`, untested) | partial | **✓ strongest** (design tables + SQL) | ✗ |+| 24 | Pack and Go — collect a design + all references | ✗ | ✓ built (gated), ⚠ mock | ✗ | ✗ | ✗ | partial (batch ops) | ✗ |+| 25 | PDM / vault integration | n/a | ✗ not built | ✗ | ✗ | ✗ | **✓ only one** (5 tools) | ✗ |+| 26 | Application preferences — read and write | ✓ incl. driving the settings modal | **✓ live** (written, then read back) · modal driving declined by design | ✗ | ✗ | ✗ | ✗ | partial (`set_units`) |+| 27 | Screenshots + window management | ✓ | ⚠ mock (delegated to ab; SKIPPED in live runs) | ✗ | ✗ | ✗ | ✗ | ✗ |+| 28 | Blocking-dialog handling | ✓ dismisses them | **adapted — censuses by default**; `neverAutoAnswer` classes never closed | ✗ | ✗ | ✗ | ✗ | ✗ |+| 29 | Electronics — schematic, PCB, Gerbers, CPL, design rules | ✓ 15 verbs | n/a | n/a | n/a | n/a | n/a | n/a |+| 30 | Component libraries / 3D packages (EAGLE `.lbr`) | ✓ 23 verbs | n/a | ✗ | ✗ | ✗ | ✗ | ✗ |+| 31 | Vendor MCP-server proxy | ✓ 6 verbs (Autodesk ships one) | n/a — Dassault ships none | n/a (is itself an MCP server) | n/a | n/a | n/a | n/a |+| 32 | Bridge infrastructure — self-describe, shipped docs, guided demo, uninstall | ✓ all four | ✓ describe/docs/uninstall · ✗ demo (deferred v0.4) | partial (13 MCP resources) | ✗ | partial (docs audit) | partial (resource registry) | ✗ |+| 33 | **Action ledger + measured per-verb timings** | ✓ ledger, verb times, live feed, alerts | **✓ ledger + timings recorded live** | ✗ (dev log only) | ✗ | ✗ logging only | partial ("enhanced logging") | ✗ |+| 34 | **Deny-by-default write gate** | ✗ no gate, no confirm/reason in its catalog | **✓ live — unique. Two independent layers, 8 adversarial rounds, held in all 3 live runs** | ✗ | ✗ | partial ("adapter safety wrappers") | partial (macro exec needs permission) | ✗ |+| 35 | Host-ecosystem integration (Adom Bridge, Activity Log, skill) | ✓ native | **✓ native** | ✗ MCP clients only | ✗ | ✗ | ✗ | ✗ |++*(35 numbered rows; rows 29–31 are the N/A block that accounts for most of the Fusion verb-count gap.)*++## Per-competitor notes++### SolidPilot — eyfel/mcp-server-solidworks · **AGPL-3.0** + paid commercial · 265★ · C# + Python++The one to take seriously. Four-layer architecture: an AI planner emits a CAD-neutral **Feature Graph+IR**, a deterministic Python compiler lowers it to ordered tool calls, and a **single C# .NET 4.8+execution layer on one STA thread is the only code that touches COM**. ~46 tools, 13 MCP resources.+Its README makes verifiable-shaped claims — production parts round-tripped `analyze_model` → IR →+`rebuild_from_ir` → `compare_parts` to a `verified` match on exact topology and mass properties, nine+real manufacturing drawings reconstructed to ≤0.02% weight match. Deeper than us on modeling,+assemblies, sheet metal and drawings. Has **no** BOM (on the roadmap), no configurations, no custom+properties, no preferences, no screenshots, no macros (deliberately — the compiler replaces scripting),+no write gate, and no ecosystem beyond Claude Desktop. Its `ensure_ready` claims to launch SOLIDWORKS+via COM, which is plausible on a classic desktop install and would fail exactly as ours does on+Connected/Makers. **Evidence: README only. Not installed, not run.**++### vespo92/SolidworksMCP-TS — **MIT** · 222★ · TypeScript + `winax`++Second-most-starred and the most candid: labelled **"Alpha / Experimental"**, with the README stating+that *"most tools have not been validated against a live SolidWorks instance"* and that no real+integration tests exist. Its own coverage table grades Modeling "Partially tested" and Drawing, Export,+Analysis and Macro all **"Untested"**. Broad tool surface on paper (modeling, sketch, drawing, export,+analysis with `check_interference` and `get_mass_properties`, VBA generation, macro recording); no+assemblies, no BOM. Last pushed 2026-05. Useful as a naming/API reference, not as evidence that+anything works.++### andrewbartels1/SolidworksMCP-python — **MIT** · 67★ · Python++**122 tools** per today's README (the figure was 109 earlier — it is moving; pushed 2026-09-02), across+modeling, sketching, drawing, analysis, export, automation, templates and macros. Self-described+**"hobby/research product"** and "under active construction", and it ships an explicit mock warning:+*"Mock adapter output is simulated and should not be treated as engineering truth."* Runs in mock mode+unless started with `--real`, and `--real` **requires SOLIDWORKS to already be open** — the same+attach-only constraint we have, arrived at without comment. Explicitly does *not* do checkpoint-level+interference validation. Highest tool count in the field, lowest evidence-per-tool.++### Adam-Schildkraut/solidworks-mcp — **MIT** · 1★ · TypeScript · last push 2025-08++Small but oddly complementary: it is the **only** project with **PDM tools** (configure, check-in,+check-out, workflow, folder structure), the only one with **SQL-driven design tables** for+configurations, and it leans hardest on VBA — macro record/stop/export/execute plus a claimed **100++VBA generation templates** covering part features, assembly mates and interference, drawing views and+tables, custom properties and batch/PDM operations. No validation statement of any kind, one star,+and its README's support links point at a different org (`vinnieespo/solidworks-mcp-server`), so treat+it as derived work of uncertain provenance. **The template library is the interesting artefact here,+not the server.**++### alisamsam/Solidworks-MCP — **MIT (verified)** · 108★ · Python · 22 tools++Task brief listed its licence as unknown; the GitHub API confirms **MIT**, 108★, last pushed 2026-03.+Deliberately minimal and honest about it: connect to a *running* instance, part/assembly documents,+six sketch primitives, extrude/cut/fillet/chamfer, list features, set units — and `execute_python`,+which makes it the only project besides ours to offer a scripting escape hatch into a live SOLIDWORKS+session. **It has no export tools at all**, no drawings, no assembly mates, no BOM, no properties. It+is a clean starter kit, not a competitor for real work.++## Licensing++**This is the section with a decision in it.**++**SolidPilot (eyfel/mcp-server-solidworks) — AGPL-3.0, dual-licensed commercially.** Verified from the+repository's own licence metadata, not a badge. AGPL-3.0 is the strongest common copyleft: it extends+GPL's obligations to network use, so **anything we distribute that links or incorporates AGPL code must+itself be released under AGPL, source included** — and under the network clause, even offering it as a+hosted service to users triggers the same obligation. For a bridge that ships inside Adom Bridge to+customers, that is not a licence we can absorb. The author offers a **paid commercial licence** as the+escape hatch. **Conclusion: read it, learn from its architecture — the Feature Graph IR and the+single-STA-thread C# COM boundary are both good ideas — and copy neither its code nor its files.** Any+IR-shaped work of ours must be independently written. If we ever want its code proper, that is a+procurement conversation, not an engineering one.++**vespo92/SolidworksMCP-TS — MIT.** Verified. Permissive; we could vendor or adapt code with attribution.+Given the project's own "most tools not validated" disclaimer there is little worth vendoring, but its+tool naming is a fair reference.++**andrewbartels1/SolidworksMCP-python — MIT.** Verified. Permissive. Same caveat: mock-simulated output+by default, so its value is as a map of the COM surface rather than as working code.++**Adam-Schildkraut/solidworks-mcp — MIT.** Verified. Permissive, and the **VBA template library is the+one asset in the whole survey that MIT actually makes attractive to us** — if the macros route+(`RunMacro2`) proves out, 100+ MIT-licensed VBA templates are a legitimate head start. Provenance is+murky enough that we should check the templates' own headers before reusing them.++**alisamsam/Solidworks-MCP — MIT.** Verified (previously unknown to us).++**swx — MIT** (`bridge.json`, `LICENSE`). We are on the permissive side of the field with everyone+except SolidPilot. Exactly one copyleft player; everything else MIT.++## Additional items we can pull off++Capabilities **nobody** in this field has, which swx could add at low cost, roughly in order of+value-per-effort:++1. **Drawing-sheet outputs — PDF + BOM tables from a `.slddrw`.** Our DXF/DWG/PDF exports are already+   built and refused for a part, which is the expected behaviour; the drawing is their real story and+   it is untested. SolidPilot builds drawings but does not ship a BOM; Schildkraut inserts BOM tables+   but has no evidence. **A live-proven drawing → PDF-with-BOM path would be unique in this field.**+2. **Sanctioned launch via the 3DEXPERIENCE chain** (`CATSTART.exe` → `SWXDesktopLauncher`, found+   2026-09-03). Closes our loudest documented "cannot", and no competitor has solved launch on a+   Connected edition — bartels and alisamsam simply require the app to be open already.+3. **A macros bridge** (`RunMacro2` for `.swp`, then VSTA / C# add-ins). Buys back most of the+   in-process-scripting gap and would let us reuse an MIT template corpus. Caveat to settle first: the+   Makers edition restricts third-party add-ins but does run macros — which is precisely why macros,+   not add-ins, are the first move.+4. **Configurations as a first-class surface.** We are already configuration-aware in BOM and+   properties; enumerating, activating and diffing configurations is a small step, and Fusion has no+   equivalent concept at all. Design tables (Schildkraut's SQL trick) are the stretch goal.+5. **Pack and Go, proven live.** Built and gated already; it needs an assembly with references to+   exercise. Nobody else has it.+6. **The action ledger and measured verb timings as a product feature, not plumbing.** We have p90s from+   real hardware (`run_script` 10.2s, `new_document` 9.2s, `import` 7.8s, `save_as` 2.7s, all far inside+   budget). No competitor can tell a user what an operation will cost.+7. **Wiki / molecule integration.** Native GLB export already works live; the pipeline from a+   SOLIDWORKS part to a published molecule is ours to connect and is not even conceivable for a bare+   MCP server.+8. **Ship the deny-by-default posture as the marketed differentiator.** It is the single strongest+   claim we have and it is *evidenced*: eight adversarial rounds, two independently-enforcing layers,+   and three live runs in which the bridge refused to touch the user's own open document — including+   one abort where it removed every file it had written. Every competitor in this survey will, on+   request, write to a path the user owns with no confirmation and no record.+9. **Per-component mass properties** — small, and blocked only on being able to populate an assembly.++## What is still unproven, and where++Nothing above changes the standing recommendation: **run `tools/live-smoke.py`** once SOLIDWORKS is+back up, started from the 3DEXPERIENCE Platform. It is what converts the ⚠ mock cells in column B into+✓ live — or finds the next bug, which is what happened all three previous times. The assembly verbs+(`swx_bom`, `swx_interference`, per-component mass properties) need a real multi-component assembly or a+classic desktop install; the 2D exports need a real `.slddrw`. And no competitor cell in this table is+better than read-from-README, because none of them was installed or run.
docs/FUSION-PARITY-BRIEF.mdadded+1223
@@ -0,0 +1,1223 @@+# Fusion-parity brief — solidworks-bridge v0.3 (swx)++Drew's ask (2026-09-02): "Build the functionality to open an existing file or create a+new one. Learn EVERY capability of the Fusion bridge (wiki.adom.inc/adom/fusion-bridge),+build a SW alternative for all of them, and tell me what is lacking when done."++Quality bar is unchanged: kicad/pup/native-browser. Every response carries a `_hint`;+stable `errorCode`s; background etiquette; progress on slow verbs; a suite that cannot lie.+The v0.2 codebase (Rust, single exe, killable COM child) is the base — extend, don't rewrite.++## What is PROVEN LIVE on Drew's machine (2026-09-02) — build on these facts++- SOLIDWORKS 3DEXPERIENCE R2026x ("SOLIDWORKS Design Professional for Makers 2026 SP3.0",+  sldworks.exe v34.3.0.0150) at+  `C:\Program Files\Dassault Systemes\SOLIDWORKS 3DEXPERIENCE R2026x\SOLIDWORKS\sldworks.exe`.+- **Out-of-process COM attach WORKS** (GetActiveObject → `swx_com_eval $sw.RevisionNumber()` →+  "34.3.0"). PowerShell's late-binding adapter FAILS the same call (TYPE_E_ELEMENTNOTFOUND); our+  raw GetIDsOfNames+Invoke path works. Never reintroduce a PowerShell layer.+- **Creating documents:** `$sw.NewPart()` HANGS (>110s, killed by the watchdog; no dialog left).+  The working recipe is `NewDocument(template, 0, 0, 0)` with the stock templates:+  `$sw.GetDocumentTemplate(1,"",0,0,0)` → `C:\ProgramData\SolidWorks\SOLIDWORKS 2026\templates\Part.prtdot`+  `$sw.GetUserPreferenceStringValue(9)` → `...\templates\Assembly.asmdot` (swDefaultAssemblyTemplate=9;+  swDefaultPartTemplate=8 returned "" — so resolve part templates via GetDocumentTemplate, and+  drawing templates via GetDocumentTemplate(3,...)). Live: NewDocument(Part.prtdot) → "Part1";+  swx_docs sees it; swx_mass_properties runs (mass 0 on an empty part); swx_close_doc {save:false}+  discards it; swx_docs is empty again.+- No local .sldprt/.sldasm exist on the box (Connected keeps documents in the 3DEXPERIENCE cloud),+  so every document-verb test must CREATE its own scratch document, exercise it, and close it+  WITHOUT saving. Files saved to disk for tests go under the bridge scratch dir and are removed.+- 13/13 no-document verbs pass live; crash recovery (kill+respawn of the COM child) proven live.+- Two detection bugs were found live and are fixed (partial-component glob; case-insensitive+  tasklist match). Lesson: mock-only green is not green — validate every new verb LIVE.++## Dev loop that works (use it; do not invent another)++```+cargo build --release --target x86_64-pc-windows-gnu     # exe ~850K+# the container already serves target/x86_64-pc-windows-gnu/release/ on :8877 via python http.server+#   -> https://drew2-gallia-7g17dw3vho0f.adom.cloud/proxy/8877/swx-bridge.exe (anonymous OK)+# on the desktop (ALWAYS --target adom_drew2; 2 bridge clients are on the relay):+adom-bridge --target adom_drew2 --ai-thread "SolidWorks Bridge" shell_execute '{"command":"powershell -NoProfile -Command \"Invoke-WebRequest -Uri https://drew2-gallia-7g17dw3vho0f.adom.cloud/proxy/8877/swx-bridge.exe -OutFile \\\"$env:LOCALAPPDATA\\Adom Bridge\\bridges-cache\\solidworks-dev\\swx-bridge.exe\\\" -UseBasicParsing\"","timeoutSeconds":180,"reason":"..."}'+adom-bridge --target adom_drew2 --ai-thread "SolidWorks Bridge" process_kill '{"pid":<old>,"reason":"..."}'   # old dev bridge (pid was 95412)+adom-bridge --target adom_drew2 --ai-thread "SolidWorks Bridge" launch_process '{"path":"%LOCALAPPDATA%\\Adom Bridge\\bridges-cache\\solidworks-dev\\swx-bridge.exe","args":["--port","24695"],"window":"hidden","env":{"ADOM_BIND_HOST":"127.0.0.1"},"reason":"..."}'+python3 tools/swx-live.py <verb> '<json>' [timeoutSec]     # calls POST /command on the desktop via curl.exe+```+Every gated ab verb (shell_execute, launch_process, process_kill, write_file) needs a `reason`+written for the human. `tools/swx-live.py` already does this.++## HARD RULES while driving Drew's live SOLIDWORKS++- NEVER call `swx_stop` / ExitApp / process_kill on sldworks.exe. Drew is using it.+- NEVER close or save a document you did not create. Scratch docs you create are closed with+  save:false. Never leave a scratch doc open at the end of a test.+- NEVER foreground SOLIDWORKS; never send keys/clicks to it. COM only.+- A verb that can hang gets a bounded timeout; the COM child watchdog is the safety net, not+  the plan. Test any NEW COM call first via `swx_com_eval` with a short timeout.+- Keep the 23 existing verbs' shapes backward compatible. Bump version to 0.3.0 (Cargo.toml ++  BRIDGE_VERSION + bridge.json + package.json in lockstep — lib.rs asserts it).++## The Fusion bridge's capability surface (inventory) → the SW plan++Source: wiki page adom/fusion-bridge v1.9.341 (bridge.json 57 manifest verbs; describe.py+catalog ~110 verbs; README_VERBS.md categories). Cloned at+/tmp/claude-1001/-home-adom-project/ca530728-41cc-4f93-a92d-d32d4afe1153/scratchpad/fusion-bridge/+(read VERBS.md, README_VERBS.md, describe.py, SKILL.md, README.md, docs/*.md for exact+arg/response shapes — mirror arg NAMES where the concept is the same so an AI that knows+fusion_* can drive swx_* with no relearning).++### A. Lifecycle & app state — BUILD (full parity)+| Fusion | SW verb | Notes |+|---|---|---|+| fusion_start / fusion_launch | swx_start (exists) | add `visible`, `stillLaunching` polling semantics + measured cold/warm history (SDK progress rule) |+| fusion_stop | swx_stop (exists) | keep; refuse when `unsavedDocs>0` unless `force:true` |+| fusion_kill | swx_kill | taskkill /F sldworks.exe — gated, requires `reason` + `confirm:true` |+| fusion_readiness | swx_readiness (exists) | add `addinStale:false`-style parity fields: `comAttachable`, `version`, `hostPid` |+| fusion_get_app_state | swx_get_app_state | = today's swx_status+state merged into Fusion's shape: running, activeDocument{name,type,path,dirty}, documents[], workspace(part/assembly/drawing), busy, blockingDialogs[] |+| fusion_state | swx_state (exists) | ADD the screenshot: base64 PNG of every SOLIDWORKS window via ab desktop_screenshot_base64 {hwnd} (callback), plus dialog census |+| fusion_document_info | swx_document_info | active doc metadata: name, type, path, isSaved/dirty, configurations, units, custom-prop count |+| fusion_activate_document | swx_activate_document | `$sw.ActivateDoc3(name, useUserPref, option, errors)` — by name or path |+| fusion_close_document | swx_close_doc (exists) | add `name` arg parity; `save:false` default silent |+| fusion_close_all_documents | swx_close_all_documents | `$sw.CloseAllDocuments(includeUnsaved)`; DESTRUCTIVE → require `confirm:true`; skips dirty unless `closeUnsaved:true` |+| fusion_reset_workspace | swx_reset_workspace | close all scratch docs the bridge created (track them in a ledger) |+| fusion_dismiss_blocking_dialogs / fusion_close_window / fusion_dismiss_recovery | swx_dismiss_blocking_dialogs, swx_close_window | enumerate SOLIDWORKS-owned dialog windows (via ab desktop_list_windows callback, owner pid = sldworks), classify by title (Save changes?, Recovery, license, update), WM_CLOSE by hwnd via ab desktop verbs; never auto-answer "Save changes?" |+| fusion_window_info / screenshot_fusion / screenshot_all / take_screenshot | swx_window_info, swx_screenshot (exists) | screenshot_all = every SW-owned window; use ab generic verbs only |+| fusion_action_ledger | swx_action_ledger | append-only ledger of background actions (docs created/closed, dialogs dismissed, child respawns) in the scratch dir |+| fusion_verb_times | swx_verb_times | measured per-verb timings store (p50/p90, cold vs warm) — feeds `progress` blocks |+| fusion_live_feed | swx_live_feed | LATER (v0.4) — note as lacking |+| fusion_install_fusion / signin / signin_2fa / set_auto_update / set_seat_takeover / set_window_sizing / set_driving_badge | — | NOT APPLICABLE / DEFER: SW has no silent free installer (reseller/Makers store), sign-in is the 3DEXPERIENCE launcher's. Driving badge (taskbar overlay via ab) is CHEAP → build `swx_set_driving_badge` if time allows; report the rest as lacking with reasons |++### B. Files: open / create / save / cloud — BUILD (Drew's explicit ask)+| Fusion | SW verb | Notes |+|---|---|---|+| fusion_open_design (local) | swx_open (exists) | already silent OpenDoc6; add `activate:false` option, `readOnly`, return `progress` (measured) |+| NEW (no Fusion twin, Drew asked) | **swx_new_document** | `{type:"part"|"assembly"|"drawing", template?, name?}` via NewDocument(template,0,0,0) with the stock templates resolved at runtime (GetDocumentTemplate). Returns doc info. Record in the scratch ledger. |+| fusion_import_step | swx_import | open STEP/IGES/Parasolid/STL as a new part via `$sw.LoadFile4(path, "r", null, errors)` (import) — live-test; fall back to OpenDoc6 for native |+| fusion_save_to_cloud | swx_save_as | `$doc.Extension.SaveAs3(path, 0, 1, null, null, errs, warns)` local save-as (Connected also supports "Save to 3DEXPERIENCE" — expose `swx_save_to_cloud` only if provable live via API; else report lacking) |+| fusion_export_{step,iges,stl,3mf,obj,dxf,dwg,sat,f3d,usdz,fbx,skp} | swx_export (exists, one verb) | add per-format aliases swx_export_step/iges/stl/3mf/dxf/dwg/pdf/parasolid so the arg surface matches; verify each format LIVE on the scratch part (SaveAs3 keys off extension; 3MF/OBJ may need swExportOptions — test; report unsupported ones as lacking) |+| fusion_aps_search / browse / recent / open / file_info / versions / download / upload / create_folder / list_cloud_projects / list_cloud_files / walk / search_cloud_files | swx_cloud_* | **RESEARCH + STUB**: 3DEXPERIENCE has the 3DSpace/3DDrive REST APIs (tenant https://oi000616940-usw1-makers-ifwe.3dexperience.3ds.com, CAS/passport auth). This is the Fusion APS trail. Build `swx_cloud_status` (auth state) + `swx_cloud_search` + `swx_cloud_open` (OpenDoc7 / PLMObjectSpecification via COM) ONLY if you can prove ONE call live; otherwise ship a clear `errorCode:"cloud_not_configured"` scaffold + document exactly what auth/API is needed. Report as lacking. |+| fusion_cleanup_cloud_files / delete_cloud_file / export_cloud_file | — | lacking (cloud) |+| fusion_check_recovery | swx_check_recovery | detect the SOLIDWORKS Document Recovery pane/dialog |+| fusion_find (n/a) | swx_find_files (exists) | keep |+| fusion_pack_and_go (n/a) | swx_pack_and_go (exists) | live-test it |++### C. Design intelligence & modeling — BUILD (the MCAD strength)+| Fusion | SW verb | Notes |+|---|---|---|+| fusion_get_design_info | swx_design_info | feature count, body count, sketch count, units, configurations, material, referenced files (assemblies), rebuild state |+| fusion_get_parameters / set_parameter | swx_get_parameters / swx_set_parameter | global variables + dimensions: `$doc.GetEquationMgr()` (Equation, GetCount, Equation(i) get/put) and `$doc.Parameter(name)` / IDimension.SystemValue. Live-test on a scratch part with one extruded box (create via swx_run_script? see below) |+| fusion_inspect_bodies | swx_inspect_bodies | per body: bbox (mm), volume, area, faceCount, material, visible — `$doc.GetBodies2(0,true)` + IBody2.GetMassProperties / GetBodyBox |+| fusion_physical_properties | swx_mass_properties (exists) | add per-component breakdown for assemblies (parity with Fusion's per-component list) |+| fusion_assembly_bom | swx_bom (exists) | add `indented:true` (level column, parent path), `kitAware` no-op, and CSV column ordering parity |+| fusion_run_modeling_script / execute_text_command | swx_run_script | THE escape hatch with teeth: a small, safe, deterministic modeling DSL executed on the COM child — at minimum `new_part`, `sketch_rect(w,h,plane)`, `extrude(depth)`, `set_material(name)`, `set_prop(k,v)`, `save_as(path)` so tests can build a real solid (the mass-properties/BOM/export tests NEED a body). Implement via the standard API: SketchManager.InsertSketch / CreateCornerRectangle / FeatureManager.FeatureExtrusion3 (test the exact late-bound signatures live; document the ones that work). Also keep swx_com_eval. |+| fusion_mcp_* (Autodesk MCP proxy) | — | NOT APPLICABLE (no SOLIDWORKS MCP from Dassault); note the community MCP servers exist (research from 2026-09-01) — lacking by design |+| fusion_board_stackup / electronics | — | not applicable (MCAD) |++### D. Preferences & UI — BUILD (cheap parity)+| Fusion | SW verb | Notes |+|---|---|---|+| fusion_get_preferences / set_preference | swx_get_preferences / swx_set_preference | units (GetUserPreferenceIntegerValue swUnitsLinear), theme not applicable (report), background/appearance where API allows; keep the set small and PROVEN |+| fusion_prefs_open / prefs_close | — | lacking (UI-driven) |+| fusion_click_fusion / send_key | — | deliberately NOT built (COM-first; foreground etiquette). Report as lacking-by-design with the etiquette rationale |++### E. Show / eight-surfaces analog — BUILD the MCAD set+| Fusion | SW verb | Notes |+|---|---|---|+| fusion_show_project / show_2d_board / show_3d_board / show_schematic | swx_show_part, swx_show_assembly, swx_show_drawing | open+activate+zoom-to-fit (`$doc.ViewZoomtofit2()`) in the BACKGROUND, return via swx_state screenshot |+| fusion_show_symbol / footprint / 3d_package / library | — | not applicable (electronics) |++### F. Manufacturing / electronics / libraries / demo — mostly NOT APPLICABLE+gerbers, CPL, design rules, layers, EAGLE/Electron commands, .lbr libraries, managed libraries,+package generation, molecule/GLB pipeline, fusion_demo tour: report each as not applicable+to MCAD or as "lacking, candidate for v0.4" (e.g. swx_export_drawing_pdf, swx_demo tour).++## Testing (app-testing discipline, adapted) — REQUIRED++1. Mock parity: every new verb gets a MockBackend implementation with the same response shape,+   e2e coverage in tests/e2e.rs, and the verb-coverage gate keeps passing (bridge.json ⇔+   describe ⇔ calls made, three ways). No test reads source as strings.+2. LIVE smoke suite: `tools/live-smoke.py` (python, runs from the container via+   tools/swx-live.py) that: creates a scratch part via swx_new_document → builds a real solid via+   swx_run_script → exercises design_info, parameters get/set, inspect_bodies, mass_properties,+   props get/set, export (step, stl, iges, pdf-for-drawing where possible) with files under the+   scratch dir → verifies bytes on disk → creates a scratch assembly, inserts the part twice+   (if provable) → swx_bom → interference → closes everything without saving → asserts swx_docs+   is back to the pre-run set → prints a PASS/FAIL table. It must leave Drew's SOLIDWORKS exactly+   as it found it. The Verifier runs this suite; the Builder runs it before claiming done.+3. Error paths for every new verb (missing args, wrong doc type, unsafe paths).++## Deliverables++- Code + tests green (`cargo test`, cross-compile), version 0.3.0, committed.+- Updated README.md / SKILL.md / docs (verb families, the NewDocument recipe, cloud status).+- **docs/FUSION-PARITY-REPORT.md**: for EVERY Fusion capability (all ~110 catalog verbs): SW verb+  built (live-proven ✓ / mock-only ⚠) | adapted | NOT APPLICABLE (why) | LACKING (why + what it+  would take). Drew reads this; be honest and specific.+- Append "## Build notes — <date>" to this brief for every plan deviation.++## Build notes — 2026-09-02 (v0.3 build)++Every deviation from the plan above, with the assumption that turned out to be wrong.+The full verdict-per-verb picture is in `docs/FUSION-PARITY-REPORT.md`; this is the+record of where the BRIEF was wrong, which is a different (and more useful) list.++### The brief's biggest wrong assumption: that SOLIDWORKS can be started++Section A said `swx_start (exists)` and asked for polling semantics. It cannot exist on+this machine. `CoCreateInstance(SldWorks.Application)` returns `CO_E_SERVER_EXEC_FAILURE`+(`0x80080005`), and launching `sldworks.exe` directly spawns a process that puts up+*"SOLIDWORKS Design must be launched from the 3DEXPERIENCE Platform or from the desktop+shortcut created from the Platform"* and never becomes a drivable COM server. Both were+observed live. `GetActiveObject` attach is the only working path.++`swx_start` is now attach-first and, when nothing is attachable, returns+`errorCode:"host_app_launch_blocked"` with instructions written for the human. The+CoCreateInstance path survives for classic desktop SOLIDWORKS, behind+`Detection::edition()` / `can_launch()` (the install path carries `3DEXPERIENCE` /+`Dassault Systemes`). `swx_stop` now refuses while documents are unsaved and its hint+warns that on Connected it cannot start the app again — stopping is close to a one-way+door here, which the brief did not anticipate.++**Cost of learning this:** one stray refused `sldworks.exe` (identified by the pid+`launch_process` returned, and removed) and one modal briefly on the user's screen. The+constraint is now encoded in code, SKILL.md, README.md and the report so it cannot be+rediscovered the same way.++### Four v0.2 COM bugs the live probes found (none visible to 49 mock tests)++1. **`SaveAs3` returns `swFileSaveError_e`, not a bool.** `0` is success. v0.2 read it as+   a bool, so every successful export reported failure. Probes wrote a 15,836-byte STEP+   and a 22,304-byte IGES that the bridge called refusals. Now decoded, bit flags and all.+2. **Exports were renaming the user's open document.** `swSaveAsOptions_Silent` (1) alone+   is a real Save As. Observed live: a scratch part came back titled `probe.SLDPRT` after+   an export. Exports now use `Silent|Copy` (3), and `swx_export` asserts the title+   survived (`documentRenamed`).+3. **`InterferenceDetectionManager` is on `IAssemblyDoc`, not `ModelDocExtension`.** Every+   interference check in v0.2 failed with "unavailable". Confirmed live on the assembly doc.+4. **`Feature::GetErrorCode2` is uncallable late-bound on this build** (it wants a single+   byref BSTR; every arity we can express is rejected), so v0.2's feature walk marked+   EVERY feature unreadable — an empty assembly reported 16 errors. `GetErrorCode()` (no+   args) works and returned 0 live; `Extension.GetWhatsWrongCount()` is the cross-check.++### Where the brief's proposed COM calls were wrong or incomplete++- **`GetUserPreferenceStringValue(8)` DOES work** (the brief said it returned ""). All+  three template preferences (8/9/10) and all three `GetDocumentTemplate(1|2|3,...)` calls+  resolve on this install. `template_for()` tries GetDocumentTemplate first and falls back.+- **`SelectByID` (the 5-arg legacy form) is enough** for plane selection and is proven+  live. The brief implied `Extension.SelectByID2` with its null callout argument; the+  legacy form needs no null, so there is one less thing to marshal wrong. (`null` was+  added to the `swx_com_eval` grammar anyway — it is needed for `LoadFile4`.)+- **`FeatureExtrusion3` takes 23 arguments and consumes the sketch that `InsertSketch`+  just closed** — no re-selection needed. Proven live end to end: `NewDocument` →+  `SelectByID("Front Plane","PLANE",0,0,0)` → `InsertSketch(true)` →+  `CreateCornerRectangle` → `InsertSketch(true)` → `FeatureExtrusion3(...)` →+  `GetBodies2(0,true)` returned 1 body, and `swx_mass_properties` read back exactly+  3.0e-5 m³ for a 50×30×20 mm box.+- **`GetMaterialPropertyName2` needs a byref BSTR** for its second parameter; the+  two-plain-string form is rejected. `SetMaterialPropertyName2(config, db, name)` works+  as documented (mass went from 0.03 kg at density 1000 to 0.081 kg at 2700).+- **`ISldWorks::NewPart()` hangs** — confirmed again; `NewDocument` is the only route.++### Section B: export formats, measured rather than assumed++The brief asked for per-format aliases and said to verify each live. Done, by exporting a+real solid and checking the bytes:++- **Work from a part:** STEP, STP, IGES, STL, X_T, X_B, SAT, 3MF, **GLB**, PLY, AMF,+  3DXML, PNG, JPG, TIF, XAML, PDF.+- **Refused for a part** (`swFileSaveError_e` 256, nothing written): OBJ, DXF, DWG, U3D.+  DXF/DWG are drawing formats; aliases still ship for them because a `.slddrw` is the+  right target and could not be tested.+- **VRML (`.wrl`) HANGS**: it raises a modal option sheet, the COM call never returns, and+  the watchdog killed the host after 110s — leaving the dialog on screen. `swx_export`+  now refuses it before it reaches COM (`errorCode:"format_blocked"`). This is a+  capability the brief did not anticipate needing to *remove*.++GLB working natively is a genuine advantage over Fusion, which needs an optimisation+service for its GLB. Ten aliases ship (step, iges, stl, 3mf, glb, sat, parasolid, pdf,+dxf, dwg); OBJ deliberately does not, because it does not work here.++### Section C: `swx_run_script` is a typed DSL, not a script host++The brief called for "a small, safe, deterministic modeling DSL", and that is right — but+worth stating why it is not a port of `fusion_run_modeling_script`: Fusion hosts Python+in-process, SOLIDWORKS' scripting is VBA (a macro *file* format driven through a UI), so+there is nothing to `eval`. `script` is a JSON array of typed steps, parsed and validated+on the SERVER before the first COM call — a script that cannot work never half-runs on a+live session. Millimetres in, metres at the COM boundary, one conversion point.+`cut` (`FeatureCut4`) ships but was never executed live and says so in its result+(`proven:false`).++### Section C: the assembly verbs could not be live-proven — and why++`IAssemblyDoc::AddComponent5` returns `Nothing` on this install for every combination+tried: all `swAddComponentConfigOptions_e` values, a saved and an unsaved assembly, an+open and a closed part, and the older `AddComponent4`. No error, no dialog. The most+likely explanation is that SOLIDWORKS **Connected** does not permit local-file component+references (documents belong in 3DSpace), but that is inference. The brief's plan to+"create a scratch assembly, insert the part twice, swx_bom, interference" is therefore+**not achievable on this machine**, and `swx_bom` / `swx_interference` / per-component+mass properties remain mock-only. Re-test them on a classic desktop install, or against+an assembly the user already has.++### Section B: the cloud is not a stub, it is a documented absence++The brief said "build `swx_cloud_status` + `swx_cloud_search` + `swx_cloud_open` ONLY if+you can prove ONE call live". Nothing is provable: `IsPLMConnected` and+`GetPLMConnection` do not exist on this build, and `GetSearchFolders` / `EnumDocuments2`+are rejected. So only `swx_cloud_status` ships — and it RUNS THAT PROBE ON DEMAND and+returns the results (`probedMembers`), so the answer is evidence rather than an assertion.+No `swx_cloud_search`/`swx_cloud_open` stubs: a verb that can only fail is worse than no+verb, because an AI will keep trying it.++### Section A: dialogs are censused, not dismissed++The brief asked for `swx_dismiss_blocking_dialogs` that classifies and closes. Half of+that was a mistake, learned the hard way: closing a stuck SOLIDWORKS modal through ab's+UIA `WindowPattern.close` **took the whole application down**. So the verb REPORTS by+default; closing needs `close:true` + `reason` + `confirm`; and a dialog classified+`neverAutoAnswer` (Save changes?, Document Recovery, licence) is never closed at all.+Attribution is honest too: ab's flat window list carries no owner pid, so a bare `#32770`+is reported with `ownerConfirmed:false` rather than silently claimed as SOLIDWORKS'.+The COM-reported `Frame().GetHWnd()` (proven live) is what identifies the app window+exactly.++### Additions the brief did not ask for, that the work demanded++- **`tools/swx-batch.py`.** Each `shell_execute` round trip to the desktop costs 10-20s;+  discovering a late-bound signature takes dozens of probes. Batching them into one round+  trip is what made live-first development practical. (It stages the call list with ab's+  `write_file` — inlining it as an `EncodedCommand` blows the Windows command-line limit.)+- **`swx_action_ledger` is the audit log; the SWEEP list is separate and in memory.**+  The first cut had `swx_reset_workspace` read the ledger for `document_created` titles.+  That is unsafe: SOLIDWORKS names new documents `Part1`/`Assem1`, so a title recorded+  days ago would eventually match an unsaved document the USER made this morning, and the+  sweep would close it. The registry now lives in `Ctx::scratch_docs` (in memory,+  per-process) and is emptied by `swx_close_doc` too; a bridge restart forgets, so the+  sweep closes nothing rather than the wrong thing. The ledger keeps being the durable+  record of what happened — which is what it is for.+- **`name` as a document handle.** A document from `swx_new_document` has no path until it+  is saved, so `swx_close_doc` / the com host's `resolve()` now accept a title. (Watch the+  namespace collision: `swx_set_parameter` and `swx_set_preference` also take `name`,+  meaning something else entirely — those resolve their document from `path` alone.)+- **`swx_stop` / `swx_kill` refuse on unsaved work**, which the brief did not specify.+  Quitting a CAD application with dirty documents strands it on a save dialog nobody can+  answer, and on Connected editions the bridge cannot restart it.++### Smaller hardening from the self-review pass++- **A failed sketch step used to leave SOLIDWORKS in sketch-edit mode.**+  `sketch_rect` / `sketch_circle` open a sketch, draw, then close it; the draw used `?`,+  so an error returned with the sketch still open and a half-drawn profile on the user's+  screen. `open_sketch` now returns the SketchManager it opened and both ops close it on+  every path before propagating the error.+- `swx_kill`'s unsaved-document probe can itself fail when COM is wedged — the exact case+  the verb exists for. It now reports `unsavedKnown:false` and a null count instead of a+  reassuring zero.+- `swx_get_parameters` walks the feature tree asking each feature for its dimensions, at+  a COM round trip apiece. Bounded to 500 features with `truncated` reported, so a+  thousand-feature model cannot turn a read verb into a minute of blocked CAD.++### What is still owed++**How to finish it** (the exe is already built and served on :8877 from+`target/x86_64-pc-windows-gnu/release/`; restart that server there if it has died):++```bash+# 0. the user must start SOLIDWORKS from the 3DEXPERIENCE Platform first — the+#    bridge cannot, and must not try.+adom-bridge --target adom_drew2 --ai-thread "SolidWorks Bridge" shell_execute '{"command":"powershell -NoProfile -Command \"Invoke-WebRequest -Uri https://drew2-gallia-7g17dw3vho0f.adom.cloud/proxy/8877/swx-bridge.exe -OutFile \\\"$env:LOCALAPPDATA\\Adom Bridge\\bridges-cache\\solidworks-dev\\swx-bridge.exe\\\" -UseBasicParsing\"","timeoutSeconds":180,"reason":"..."}'+adom-bridge --target adom_drew2 --ai-thread "SolidWorks Bridge" process_kill '{"pid":<old swx-bridge pid>,"reason":"..."}'+adom-bridge --target adom_drew2 --ai-thread "SolidWorks Bridge" launch_process '{"path":"%LOCALAPPDATA%\\Adom Bridge\\bridges-cache\\solidworks-dev\\swx-bridge.exe","args":["--port","24695"],"window":"hidden","env":{"ADOM_BIND_HOST":"127.0.0.1"},"reason":"..."}'+python3 tools/live-smoke.py+```++`tools/live-smoke.py` is written and has **not been run**: Drew's desktop dropped off the+ab relay before the v0.3 exe could be redeployed. Nothing in v0.3 has been executed+end-to-end against SOLIDWORKS — only the COM sequences underneath it, individually,+through v0.2's `swx_com_eval`. The suite is the thing that closes that gap; it needs the+desktop back and SOLIDWORKS started from the 3DEXPERIENCE Platform.++## Build notes — 2026-09-02 (round 2: adversarial review)++The review found that three of the four headline safety guarantees were bypassable, two of+them proven by running the binary. It was right about all three, and about a fourth that+was worse: the live-smoke suite itself was the most dangerous artifact in the repo.++### The four bypasses, and why each one existed++**The VRML block tested the wrong noun.** The guard checked the `format` ARGUMENT; `SaveAs3`+keys the export off the DESTINATION EXTENSION. So `swx_export_step {outputPath:"x.wrl"}`+went straight into the call that hung SOLIDWORKS for 110 seconds — and because the+per-format aliases hard-code `format`, the guard could never fire for them at all. Fixed on+the extension, in three places (server, `save_as3`, DSL parse) because there are three roads+to `SaveAs3` and the DSL road had already been shown to skip a check. Tested the way it+breaks, on all five roads.++**`swx_run_script` had no notion of whose document it was building into.** `validate(ops,+has_doc)` accepted a script with no `new_part` whenever anything was open, so a sketch and an+extrude landed in the user's part. Worse, the verb's own `_hint` recommended+`swx_close_doc {save:false}` as the undo — i.e. discard their document. There is now an+ownership gate (`Ctx::scratch_docs` is the authority) on `swx_run_script`, `swx_set_parameter`,+`swx_save_as`-as-rename and `swx_close_doc`-on-dirty-work, overridable only with+`confirm:true` AND a `reason`, which is recorded in the ledger. The hint no longer offers a+destructive undo for a document that is not ours.++**DSL `save_as` bypassed `safe_out` and renamed in place.** The standalone verb had always+validated its destination; the DSL reached `SaveAs3` by a different road. Now validated at+parse time (absolute, no `..`, not a blocked extension), written in Copy mode, and refusing+to overwrite. A test asserts the two blocked-extension lists cannot drift apart.++**Dialogs and windows were closed on a guess.** `is_solidworks_window` marks any top-level+`#32770` as a candidate with `ownerConfirmed:false`, and the close path ignored that flag —+so `swx_dismiss_blocking_dialogs {close:true}` could have closed Word's Save dialog. The unit+test even encoded an unattributed "Export" dialog as closable. Both fixed; the regression+test now asserts the opposite of what it used to.++### The launch guard was a hope, not a guard++One untested path substring, on a registry value never observed on the target machine, that+answered `"desktop"` — meaning *launch it* — for anything unrecognised. Now three independent+signals (install path, registry version strings, the 3DEXPERIENCE Launcher's presence),+`"desktop"` requires POSITIVE evidence, and `"unknown"` fails safe. Both real layouts are+unit-tested, and `SWX_TEST_NO_LAUNCH` makes the `host_app_launch_blocked` branch reachable+from a test for the first time — it had never executed anywhere.++### live-smoke.py was a data-loss path++Phase 1 batched new_document → run_script → set_parameter → props_set → save_as; the+PowerShell loop had no abort-on-failure and `main()` never checked whether `new_document`+succeeded. On a Connected edition — where a failure is entirely plausible — every later step+would have hit the ACTIVE document, then `save_as` (plain Silent) would have renamed and+relocated the user's part into a scratch folder, cleanup would have closed it `save:false`,+and `Remove-Item -Recurse -Force` would have deleted the folder.++Rewritten around structure rather than care: a `Doc` registry of what the suite created,+`mutate()` as the only door to a mutating verb (refusing anything not ours), `Abort` on any+preflight or setup failure, `stop_on_failure` in the batch runner so a dead step stops the+trip, per-file deletion instead of a recursive tree removal, and the document-set invariant+as a GATE that runs even on an early abort. It also now proves the refusals — including that+a `.wrl` never reaches COM, which is the one that would hang the user's SOLIDWORKS.++### Rebutted, with reasons++**`swx_props_set` is NOT ownership-gated, deliberately.** It is in a different risk class from+`swx_run_script`: it writes a named metadata field the caller explicitly specified, in memory,+reversible by not calling `swx_save` — and annotating the user's existing parts with+PartNo/Material is the bridge's core BOM workflow, not an accident. Gating every property+write behind `confirm` would make the most common legitimate use unusable while preventing+nothing that `swx_save` does not already make explicit. It is a v0.2 verb with a v0.2+contract, and this is a decision rather than an oversight.++**`fusion_export_f3d` stays ➖ not applicable** while `skp`/`fbx`/`usdz` moved to ❌ lacking.+F3D is Autodesk's own archive format — SOLIDWORKS will never write it, and no translator+could exist. The others are formats with real translators that this install simply does not+have, which is a gap rather than an impossibility.++### Smaller items++Import can no longer run twice (the fallback is now decided by whether a document actually+appeared, not by the shape of LoadFile4's return). `stop` matches only the specific+RPC-disconnect HRESULTs and re-probes `GetActiveObject` to VERIFY the application went away.+`get_parameters` is bounded by COM round trips, not just feature count. Sketch ops clear the+selection before and after. The DSL pins its target document instead of re-resolving "whatever+is active now". Timeout budgets raised to cover worst-case server paths. `bridge.json`+detect paths synced with the code's globs. Stale catalog summaries fixed.++The coverage gate now requires an ASSERTION per verb, not just a call — the harness credits+each `check!` to the most recent verb, and the gate fails on any shipped verb that was POSTed+and never looked at. Mock fidelity: real untitled names (`Assem1`, not `Assembly1`),+`swFileSaveError_e` 256 for formats a part cannot produce, and injectable rename so+report-bug #2 has coverage for the first time.++## Build notes — 2026-09-02 (round 3: adversarial review)++The centrepiece of round 2 — the ownership gate — had a Critical flaw, and it is the most+instructive defect of the whole build.++### `targetDocument` authorized one document and the bridge mutated another++The gate resolved its target from `targetDocument` and decided ownership from that. But only+`swx_run_script` FORWARDED the argument; `swx_save_as`, `swx_set_parameter`, `swx_props_set`+and `swx_export` all sent `path` (usually null), so the com host fell back to `ActiveDoc`.+With a user part in front, `swx_save_as {outputPath:"…", targetDocument:"Part1"}` passed the+gate on Part1 and then renamed and relocated the USER'S document — the v0.2 data-loss bug,+resurrected by its own fix. The refusal message even handed the caller the value that+triggered it, in `bridgeDocuments`.++The lesson is not "check harder", it is that **a check and the action it guards must not be+able to disagree about their subject.** The fix is structural: `resolve_target()` produces a+`Target` ONCE, and `Target::args()` is the only way a mutating verb addresses a document —+`docName` (a dedicated key that cannot collide with the `name` meaning a dimension on+`set_parameter` or a preference on `set_preference`), plus the path. Whatever the gate+approved is literally what the com host is told to open. A `targetDocument` naming nothing+open is `document_not_open`, never a fall back; naming two different documents two ways is+`ambiguous_target`.++Verified against the running binary with the reviewer's exact call: Part1 is renamed,+`IMPORTANT.sldprt` is untouched.++**Rebuttal, stated because the review asked for a different test.** The requested case was+"retry with `targetDocument` from `bridgeDocuments` → must STILL refuse". It does not, and+should not: with the fix, naming Part1 operates on Part1, which is correct and safe. The test+that ships asserts the thing that actually matters — the retry acts on the named document AND+the user's document is provably still open and unchanged — plus the ambiguity and+not-open refusals that close the door the old bug went through.++### Ownership failed OPEN on title reuse++Entries were keyed on title alone, and forgotten only on paths that run through this bridge —+never by `CloseAllDocuments`, a crash, or the user closing a document in the SOLIDWORKS UI.+The comment claiming "a restart forgets" was simply false: the bridge SERVER outlives+SOLIDWORKS. And SOLIDWORKS restarts its `Part1`/`Assem1` numbering with every session, so a+remembered `Part1` would eventually match a fresh `Part1` the user made — which the bridge+would then treat as its own and build geometry into, ungated.++An entry is now `(title, SOLIDWORKS session, path-once-saved)`, where the session is+SOLIDWORKS' own process id. Ownership additionally requires the document to be OPEN RIGHT NOW,+which is what covers every close path the bridge cannot see. An unknown session fails CLOSED.+The mock models both facts — a new process id and a reset Part counter after `stop`/`start` —+so the suite can prove it rather than assert it.++### Two more unguarded roads to the same COM calls++`swx_open` passed `launch:true` unconditionally: the only such call outside `swx_start`, and+untouched by every previous fix. On a Connected edition one `swx_open` would have put the+"launch me from the 3DEXPERIENCE Platform" modal back on Drew's screen — the exact incident+this whole effort exists to prevent. The server now makes that decision with `may_launch`.++`swx_com_eval` reached `SaveAs3` directly, skipping the guarded helper, the extension block,+Copy mode and the ownership gate. It now refuses the members that write, close or delete. A+denylist is the right shape here: an allowlist of readable members would have to enumerate the+SOLIDWORKS API to be useful, while the members that DESTROY are a short, well-known list.++### The persist step is where permission belongs++Round 2 rebutted gating `swx_props_set` on the grounds that it is in-memory. That argument+only holds if nothing can commit it — and `swx_save` was ungated in the same surface. The+rebuttal was hollow, so `swx_save` is gated now (confirm + reason on a document the bridge did+not create, recorded in the ledger) and `props_set` stays open, which keeps the BOM workflow+usable while closing the path to the user's file.++### Smaller, and one that was embarrassing++The extension guard was a raw string compare: `a.wrl.`, `a.wrl ` and `a.wrl::$DATA` all+resolve to `a.wrl` under Windows canonicalisation and all sailed through. Now normalised.+Window attribution treated a title merely CONTAINING "SOLIDWORKS" as proof of ownership, which+the Installation Manager and any 3DEXPERIENCE launcher dialog also satisfy — and with COM down+the title is the ONLY test, precisely when being wrong is most likely; a real owner-pid match+is now required. `close_all_documents {closeUnsaved:true}` discarded every dirty document on+one flag; it now needs a reason, discards only the bridge's own, and lists the user's in+`skipped`. Import fails closed when the document count is unknowable. The coverage gate binds+each assertion to the verb its NAME mentions rather than the last verb called.++### live-smoke, again++Three more holes: `swx-batch.py` called `sys.exit(1)` on a staging failure, and `SystemExit`+is not `Abort` — it would have sailed straight through the `finally` that runs the+"documents unchanged" gate, so the one run where the invariant matters most was the run that+skipped it. Fixed by returning `None` and catching `BaseException`. `mutate()` checked+ownership once per phase while `ActiveDoc` follows window focus, so the eight-export batch is+now eight calls with the active document re-read before each. And `phase_ownership_refusal`+fired three mutating verbs at Drew's real document to prove a gate that had just been shown+capable of failing open — it now proves the same refusal without aiming anything mutating at+his data, unless `--touch-user-doc` is passed.++The suite's docstring now says what round 3 made explicit: **restart the bridge process before+a live run**, so ownership starts empty rather than inheriting a stale claim.++## Build notes — 2026-09-03 (round 4: adversarial review)++Round 3's Critical was half fixed, and the half that was missing was the important half.++### A title is not an identity++Ownership was `(title, session)`, and `Target::args()` sent `docName:<title>` which the com host+preferred over the `path` the Target was already carrying. Two open documents named+`thing.sldprt` in different folders is completely ordinary. Reproduced: with the user's dirty+`C:\users\thing.sldprt` and the bridge's own `C:\bridge\thing.sldprt` both open,+`swx_save_as {targetDocument:"thing.sldprt"}` — **no confirm, no reason** — passed the gate+against the bridge's copy and renamed and relocated the USER's document.++Three changes: `com.rs::resolve()` prefers **`path`** over `docName` (a title is only the handle+for a document that has never been saved, and SOLIDWORKS will not issue the same untitled name+twice in one session); `Ctx::owns_doc` keys on the path wherever there is one; and a title+matching more than one open document is `ambiguous_target` on **every** verb, read or write, with+the candidates and their paths in the response.++### `swx_close_doc` was the one destructive verb that resolved nothing++Its unsaved-work guard compared a title against `scratch_titles()` with no session scoping and no+pruning, and it ignored `targetDocument` entirely. Reproduced: it closed and discarded the user's+dirty `thing.sldprt` while the bridge's identically-titled document survived. It now goes through+the same resolver as everything else.++### My round-3 rebuttal was unsound, and worth recording as such++I argued the "retry from `bridgeDocuments` must still refuse" test was wrong because naming+Part1 correctly operates on Part1. That holds **only while titles are unique**, which I asserted+rather than checked — and the refusal handed the AI a TITLE to retry with, which is precisely how+the collision was reached. `bridgeDocuments` now carries `{targetDocument, path}` per entry and+the hint says to retry with the **path**, not the title. The e2e asserts `(title, path)` IDENTITY+of the user's document, not that it is still open: in the bug it WAS still open — under a new+name, at a new path, inside the bridge's folder.++### The denylist was the wrong shape++`swx_com_eval` blocked members that write. It did not block `SendMsgToUser2` (a modal on the+user's screen that wedges the com host for the full timeout — the exact disruption class this+whole effort exists to prevent), `SetUserPreferenceToggle`, `SetSaveFlag`, `ForceRebuild3` or+`EditRebuild3`, because nobody thought of them. A denylist has to anticipate every dangerous+member of an API with thousands. It is now an **allowlist** of reads: `Get*`/`Is*`/`Has*`/`Can*`/+`Enum*` plus a short list of navigation properties. A member nobody has thought of is refused, and+the message says how to add it if it is genuinely a read.++### live-smoke was still a weapon++Three more, all in the file whose entire job is to be safe:++- `phase_ownership_refusal` was **not** opt-in as I had claimed — only the `run_script` variant was+  gated; the default still sent a real `swx_save_as` at the user's own document through `call()`,+  on the premise that "a refusal is a read". C1 made that premise false. The default now proves+  the refusal against scratch documents and error paths that name nothing real.+- `cleanup()` unconditionally deleted `stolen.sldprt` — a file it never writes. If the gate had+  failed, that file **is** the user's relocated document, and the suite would have `Remove-Item+  -Force`d it out from under an open SOLIDWORKS window, destroying both the document and the+  evidence. It now deletes only names in `FILES_WRITTEN`, and the existence of `stolen.sldprt` is+  a hard FAIL that says not to delete it.+- The invariant gate was the LAST statement in cleanup, after `listing()` and a dozen `shell()`+  round trips, any of which could raise into the outer handler — so the runs that most needed+  "documents unchanged" were the runs that skipped it. It now runs FIRST, in its own try, and+  SKIPS rather than fails when no baseline was captured (a preflight abort fires before the+  baseline exists, and a spurious failure there teaches the reader to ignore the one check that+  matters).++Also: the units probe and the taskbar badge register their restore BEFORE changing anything, so an+abort or a dropped relay cannot leave the user's settings flipped; `mutate()`'s docstring no longer+claims to be the only door (`batch()` sends two vetted-target mutating calls, and says so); and the+resolver reads the open-document list ONCE instead of a COM round trip per document with the active+document re-read each time.++### The pattern, stated plainly++Four rounds, and every defect was **a guard that existed and could be walked around** — never a+guard nobody had thought of. Three times the fix introduced the next one. Whatever is still wrong+is most likely the same shape, which is the argument for `tools/live-smoke.py` over any further+assurance from me.++## Build notes — 2026-09-03 (round 5: the design change)++Five rounds, five Criticals, all in one surface: the bridge writing to something the user+owns, through a route whose guard had been forgotten. Round 5 found two more — an ungated+`Save3` behind `close_doc {save:true}`, and no overwrite protection on three of four write+destinations. At that point the strategy, not the code, was what needed replacing.++### Writes are deny-by-default, at one choke point++`src/writes.rs::authorize` is the only thing that decides whether this bridge may write.+Every write goes through it and it refuses unless BOTH: the document is one this bridge+created in this SOLIDWORKS session, AND the destination path does not already exist. The+escape is `SWX_ALLOW_USER_WRITES=1` on the process PLUS `allowUserWrites:true` + `confirm` ++`reason` on the call, and every grant is ledgered.++Three properties make this different from the four previous attempts:++- **It is one function, not N guards.** A new write verb cannot forget to call it and still+  work, because it has no other way to reach the com host with a mutating command.+- **The com host holds an independent veto.** It keeps its own record of the documents it+  created (it creates them, so it knows) and reads the opt-in from the environment it+  inherited — not from anything the server said. Rounds 3 and 5 both turned on the+  server-authorizes / host-acts split; a server-side check is a claim. Now two independent+  systems must agree, and `the_com_host_refuses_a_write_the_server_would_have_allowed` drives+  the raw stdio protocol to prove the host says no to a forged authorization.+- **The default is the safe subset, and the suite runs in it.** `live-smoke.py` passes with+  the opt-in OFF, which is the strongest available statement that read + create + model ++  export-to-new-paths is genuinely the whole useful surface.++The MOCK backend models the host veto too. A mock that omits the security-relevant behaviour+makes the test covering it prove nothing — the lesson of every previous round.++### Also fixed++`resolve_target` and `resolve_target_for_read` collapsed into ONE `resolve_document`:+identity is now a separate concern from permission, which is why the choke point could be+made total. Ambiguity is enforced on PATH as well as title (`save_as` can put two open+documents at the same path, so round 4's defect was re-expressible with the key that replaced+it). Every document-addressing verb — `bom`, `mass_properties`, `interference`,+`rebuild_check`, `props_get`, `props_set`, `document_info`, `design_info`, `get_parameters`,+`inspect_bodies`, `get_preferences` — now goes through it; a BOM off the wrong same-titled+part is a bill of materials somebody orders from.++`swx_props_set` no longer writes a reason THE BRIDGE AUTHORED FOR ITSELF into the ledger+("swx_props_set is in-memory until swx_save, which is gated") — a self-authored justification+in the user's audit trail, and one that the `close_doc{save:true}` bypass made false. It+records an honest `user_document_properties_set` entry instead. `swx_close_doc` now records+in the ledger at all, which both docs had promised and neither delivered.++### live-smoke, round 5++`ab()` caught only `json.loads`, so a `subprocess.TimeoutExpired` propagated out of+`cleanup()` past the invariant gate AND every restore — on exactly the runs (wedged+SOLIDWORKS, dropped relay) where putting the machine back matters most. The invariant now+runs FIRST in its own try, with `atexit` and SIGTERM/SIGINT handlers so a kill cannot skip it.+The landmine check (`stolen.sldprt` and friends) now HALTS deletion and returns instead of+printing and carrying on into `Remove-Item` eight lines later. `FILES_WRITTEN` records+authorship rather than intent, and preflight ABORTS if the shared `C:\Users\Public\swx-smoke`+is non-empty, since nine fixed filenames could otherwise collide with somebody else's.++### The honest summary++Four rounds of route-by-route gating did not converge. Denying by default at one choke point,+enforced twice, removes the class rather than the instance. That should have been the design+from the start, and the reason it was not is worth stating: each individual gate looked+sufficient when it was written.++## Build notes — 2026-09-03 (round 6: applying the design completely)++Round 5's design was right and its APPLICATION was not. `authorize` was wired into seven+verbs; three more wrote around it, and one of those destroyed a file on disk in the default+posture. The lesson repeats the shape of every previous round — a guard that exists, and a+route that does not reach it — with one difference: this time the fix is structural on the+host side rather than another verb-by-verb sweep.++### The host now authorizes on its DISPATCH LOOP, keyed off what is safe++The first host veto covered a remembered list of seven commands. Proven by forged raw stdio:+a forged `save` was correctly vetoed while a forged `run_script` — the entire modelling DSL,+`InsertSketch`/`FeatureExtrusion3`/`SetMaterialPropertyName2`/`Add3` — with no+`targetDocument` resolved to the user's ActiveDoc and mutated it. `props_set`,+`rebuild_check`, `eval`, `close_doc{save:false}`, `close_all_documents` and `stop` were+equally absent.++`Backend::authorize_command` is now part of the trait and the host's main loop calls it for+every command not on `READ_ONLY_COMMANDS`. Listing what is SAFE rather than what is dangerous+is the whole point: a command nobody has classified is refused, and one added tomorrow is+deny-by-default. `eval` additionally re-checks the read allowlist in the host, because the one+verb that can call any COM member had no host-side guard at all.++### The three routes that wrote around the choke point++- **`swx_bom {format:"csv"}`** did `std::fs::write` on the SERVER with no authorization+  anywhere — `safe_out` only checks "absolute, no `..`". It overwrote a pre-existing file and+  returned `success:true`. Because the write is server-side, both "independent vetoes" were+  structurally irrelevant to it. And SKILL called the verb a read.+- **`swx_props_set`** was left ungated on the argument that it is "in memory until a gated+  save". That ignored the persist route that cannot be gated: **the user**. It leaves their+  document dirty, so SOLIDWORKS prompts "Save changes?" on close and their own Ctrl+S commits+  bridge-authored data. Modifying the document is the harm, whoever eventually writes it.+- **`swx_rebuild_check`** called `ForceRebuild3` freely — a member on this bridge's OWN+  `NAMED_HAZARDS` list, which `com_eval` refuses as "rebuilds the user's model". A first-class+  verb doing what the escape hatch forbids is not a defensible split.++### Session changes are writes too++`swx_stop`, `swx_close_all_documents` and `swx_close_doc` on a document the bridge did not+create now need the process-level opt-in. Closing someone's document costs them their window,+their undo history and their place in the work even when it is clean; quitting is close to a+one-way door on a Connected edition, which this bridge cannot restart. `Kind::EndSession` is+gated unconditionally — there is no foreign document and no clobbered file to trigger on.++### Smaller, and one that was mine to notice++`swx_pack_and_go` had the server and the host DISAGREEING: the server passed+`destination:None` for an empty directory, which skipped the ownership question entirely,+while the real com host refused. The verb was dead on a real machine and green in the suite —+and the mock had no authorize in `pack_and_go` at all, so the tests proved the opposite of what+would happen live. `create_dir_all` also ran BEFORE authorization, leaving a directory on the+user's disk after a refusal. All three fixed, and `Kind::CollectFiles` now `touches_document`,+because Pack and Go copies the whole reference tree — a bulk extraction of the design, not one+export.++`ComBackend::created` was per-process, and the com host is killed and respawned BY DESIGN.+So a respawn started refusing writes to the BRIDGE'S OWN documents: fail-closed, but silently+broken, exactly after the recovery path the architecture exists for. It is persisted now+(`comhost/created_store.rs`), written and read only by the HOST so the veto stays independent,+and cleared when the SOLIDWORKS session ends.++### On the reversion claim++I reported "stubbing the choke point fails 2 tests". That was measured with a broken mutation+and was wrong in both directions — and there was no test at all for five of the routes above.+Every route now has one, verified by mutating `writes::authorize` to wave that verb through:+bom 1, props_set 2, rebuild_check 2, pack_and_go 2, stop/close_all 2, save 2, close_doc 2,+run_script 3, set_parameter 2, set_preference 2, export 1; the host dispatch veto 2.++### live-smoke++One real hole: `swx_rebuild_check {}` sat in `phase_build`'s batch, targeted the ACTIVE+document, and was not in `MUTATING`, so `mutate()` never vetted it. If Drew clicked his own+model mid-batch, `ForceRebuild3` would have run on it. It is pinned to the scratch document,+moved out of the batch, and added to `MUTATING` along with `bom` and `pack_and_go`. Preflight+also now asserts the DEFAULT posture, because the suite passing without the opt-in is the+strongest statement that the safe subset is genuinely useful.++## Build notes — 2026-09-03 (round 7: the half that never speaks to the com host)++Round 6 closed the write surface — every mutating command forged over raw stdio was refused by+the host's own veto. Round 7 found the remaining hole in the OTHER half of the bridge: the+verbs that go out through ab, where the com host's veto is not in the path at all and the+server-side choke point was never wired in.++### `swx_kill` force-killed SOLIDWORKS in the default posture++Its gates were `confirm:true` + `reason` — both things a caller writes for itself — plus an+unsaved-documents guard that `force:true` overrode AND that silently no-opped when COM was+wedged (`unsaved_known=false → unsaved=0 → guard skipped`), which is *exactly* the case the+verb exists for. Proven against an ab stub: `taskkill /F /IM SLDWORKS.exe` dispatched.++It goes through `writes::authorize` as `Kind::EndSession` now, so the process-level opt-in is+required exactly as it is for `swx_stop`. And `kill_is_unsafe` treats an unanswerable probe as+UNSAFE: an unanswerable question is not permission. That decision is a pure function with its+own unit test, because a mock cannot make COM fail convincingly.++### `swx_close_window` would close the application FRAME++`ownerConfirmed` is true precisely when a window is most provably SOLIDWORKS' — and the main+window is the most provable window there is. So the "this is not a general window killer"+guard PASSED on the one window it must never pass on, and `mainHwnd` is handed to callers by+`swx_status` and `swx_window_info`, which makes it the obvious thing to try. UIA Close on a+frame quits the application, with Save-changes modals on the way out.++The COM-reported main hwnd is now refused before ab is consulted at all (otherwise an+unreachable ab gives `window_not_attributed` — the right answer for the wrong reason, which+would flip to allowed the moment ab could see the window), and any non-dialog window class is+treated as a frame. `swx_window_info` reports `isFrame` and `closable` per window.++### Every dialog close now needs the opt-in — including the bridge's own++The reviewer asked for a narrow bridge-caused allowlist. I built it, then took it out. The+argument against my own first answer: on 2026-09-02 closing a stuck SOLIDWORKS modal through+the window manager TOOK THE WHOLE APPLICATION DOWN. A verb that can do that should not act on+`confirm` + `reason`. `BRIDGE_CAUSED_DIALOGS` survives as a REPORTED flag — a caller can see+which dialogs are the bridge's own mess — but it licenses nothing.++### The test gap that let all of this survive six reviews++With no ab reachable, the ab-delegated verbs only ever ran their "ab is unreachable" branch.+A guard on that side could be deleted and every test would stay green. `common::AbStub` is a+real HTTP stand-in for ab's direct API that reports windows WITH pids (so attribution+genuinely succeeds) and RECORDS what was dispatched — because "the refusal returned an error"+and "nothing was sent" are different claims, and only the second one matters. The new e2e+asserts `ab.destructive_calls().is_empty()`.++### Smaller++`created_store` now stamps the SOLIDWORKS session, and a record from another session confers+nothing (round 6 traded fail-closed for fail-open here: the file was cleared only on a clean+`stop`, so a crash, a kill or the user quitting left it claiming their next `Part1`). The mock+had the same bug in reverse — it keyed its "SOLIDWORKS session" to the com host's own pid, so+a respawned host saw a different SOLIDWORKS and discarded its own record; the session now+lives in a file, as a real process id does. `pack_and_go`'s two vetoes were answering+different questions (server: "is the directory non-empty?", host: `exists()`); both use+existence now. `swx_open` is READ-ONLY by default, so the bridge does not hold a write lock on+the user's file and an older-version document is not converted-and-dirtied just by being+looked at.++`READ_ONLY_COMMANDS` keeps `show`, `activate_document` and `interference`, and now says why in+the code: they change the VIEW, not the work — nothing they touch reaches disk, geometry or+saved state, and `interference`'s three `try_put`s are on a manager object that `Done()` tears+down on every path via a drop guard. A list called "read only" containing them without that+note would have been a lie; gating them would make `swx_show_*` useless on the user's own+documents, which is the one thing it is for.++### live-smoke++`M2`: the default-posture check was `check()`, not `require()` — with the env var set the+suite would have recorded one FAIL and then run the whole mutating suite in the ENABLED+posture. It is the single precondition the live run rests on, and it is a gate now. `M3`:+`set_preference` escaped `mutate()`, had no `targetDocument`, and so aimed at whatever was+ACTIVE — the same class of miss as round 6's `rebuild_check`. Pinned, routed through+`mutate()`, and its RESTORE lambda pinned too.++## Build notes — 2026-09-03 (round 8: the sibling that was never gated)++Round 7 gated `swx_kill` and taught `swx_close_window` to refuse application frames. It did not+gate `swx_close_window` itself — so of the four session-enders, three went through the choke+point and one did not.++### `swx_close_window` closed the user's "Save changes?" modal, in the default posture++No `writes::authorize_in`, and no `neverAutoAnswer` check, while+`swx_dismiss_blocking_dialogs` — operating on the SAME window list — had both. Proven with a+recording ab stub: posture `disabled`, `{hwnd: 9001, reason:"tidying", confirm:true}` on+"Save changes to gearbox?" → `success:true`, `desktop_ui_window {action:"close"}` dispatched.++The impact is the largest this bridge can cause. By its own live evidence from 2026-09-02,+closing a modal SOLIDWORKS is blocked on takes the whole application down — and this is the+modal that stands between the user and every unsaved document they have. It was also+DISCOVERABLE: `swx_window_info` reported that dialog `closable:true`, the same shape as round+7's `mainHwnd`.++The reasoning I used to justify removing the bridge-caused-dialog allowlist in round 7 —+*"a verb that can do that should not act on confirm+reason, both of which a caller writes for+itself"* — applied verbatim to this verb, and I applied it only to the sibling. Both refusals+are now on both verbs, and `closable` folds in ALL THREE (frame, attribution, never-auto-answer)+so a caller can act on the field rather than re-deriving the rules.++### `is_frame_window` inverted its own fail-safe++`!class.is_empty() && class != DIALOG_CLASS` — a window ab reports with no `className` was+therefore "not a frame", and closable. Proven: a SOLIDWORKS-pid window titled `bracket.SLDPRT`+with no class was closed and dispatched. It is `class != DIALOG_CLASS` now: unknown means+frame, the same rule `kill_is_unsafe` applies to an unanswerable probe.++### Three of round 7's seven fixes introduced their own defect++`swx_open` is the third. Round 7 changed the DEFAULT to read-only and left `readOnly:false`+caller-settable — on the com host's safe list, where `authorize_command` never runs. By the+comment I wrote in the same commit, that takes a write lock on the user's file and+converts-and-dirties an older-version document in memory. `is_mutating` now takes the args, so+`open {readOnly:false}` is authorized on both sides; the host decides ownership on the PATH+against its own record.++That pattern is worth naming: the fixes that introduced defects were all fixes that changed a+DEFAULT while leaving the dangerous mode reachable. Changing a default is not closing a hole.++### `swx_screenshot` was a general desktop capture tool++`titleContains` was forwarded straight to ab, so `{"titleContains":"1Password"}` captured+whatever matched, from a verb catalogued as "screenshot the SOLIDWORKS window". Not a write,+but it is the user's data and it had no test. It captures BY HANDLE now — the one COM reports,+or an hwnd `swx_window_info` attributes to SOLIDWORKS.++### `swx_uninstall` could erase the audit log++It takes no gate (ab calls it on app uninstall) and removed `ledger.jsonl` with the rest of the+scratch subtree — so an AI could erase the record of what it did by asking the bridge to tidy+up. The ledger is now the one artifact `uninstall` leaves behind; removing the folder is the+user's to do.++### Ownership means "open AND ours", on both sides++Writing the `readOnly` test surfaced a disagreement I had introduced: the host's persisted+record kept a path after the document closed, while the server's registry pruned it. So a+closed bridge-created file was ours to the host and not to the server. The host now drops the+entry on `close_doc` too. The rule both sides state: a document this session created and STILL+HOLDS — not a file this bridge once wrote, which is the reading that could drift onto someone+else's file after a rename.++### Mutation results++Twelve targeted mutations, twelve killed, including the four the review found unkilled. The+three that needed new coverage were all cases the stub made unreachable: the main-hwnd shortcut+(every stub frame also had a non-dialog class), the `ownerConfirmed` guard (every stub window+carried the SOLIDWORKS pid, so nothing was ever unattributable), and the host's+`is_mutating("open")` (the server refused first, so the host's veto was never exercised). The+lesson is the same one as round 7: a stub that only ever presents the easy case tests the easy+case.++Also done: the interference `Done()` drop guard is armed BEFORE the three `try_put`s, so a+panic inside a put cannot leak the session; the dead `isFrame` check in `dismiss` is a real one;+`live-smoke`'s `swx_show_drawing` is pinned; and the e2e assertion that accepted+`window_not_attributed` as an alternative to `window_is_application_frame` — and so pinned+nothing — now requires the frame code.++## Build notes — 2026-09-03 (round 9: the first live run)++The suite ran against Drew's real SOLIDWORKS. **22 passed, 4 failed, aborted** — and the four+failures were all one functional bug, in the exact place eight rounds of security review never+looked.++### What held up++Everything the previous eight rounds built. Drew had his own `Part1` open; the suite created+`Part2`, never touched `Part1`, aborted on the first failure, removed every file it wrote, and+left SOLIDWORKS running. `swx_reset_workspace` reported+`skipped: [{title:"Part1", why:"not created by this bridge in this SOLIDWORKS session"}]` —+session-scoped ownership, working on a real machine against a real user's document. The+"documents unchanged" invariant correctly FAILED and named the orphan. The+`host_app_launch_blocked` finding was confirmed live: *"this IS the Connected edition, which+cannot be launched programmatically."*++### The bug: an unsaved document was unaddressable by every verb++`swx_docs` listed `Part2`; `swx_design_info`, `swx_close_doc` and `swx_reset_workspace` all+reported "document not open: Part2" — **including with no target at all**, on the ACTIVE+document.++Root cause: `GetOpenDocumentByName` wants a FULL PATH. An unsaved document has none, so it+cannot be found by title — and since round 3 the server ALWAYS sends a resolved identity, so+even the no-target case went through it instead of falling back to `ActiveDoc`. The whole+create → model → export flow — the thing Drew actually asked for — was dead for new documents.++The host now resolves a TITLE by walking `GetDocuments()` and comparing `GetTitle()`. That+works for saved and unsaved alike and lets the ambiguity rule be enforced at the host rather+than trusting whichever document SOLIDWORKS hands back first. Paths still win where a path+exists.++**My round-3 rebuttal was right for this case, and the round-4 fix over-corrected.** I argued+then that a pathless document's title IS its identity because SOLIDWORKS will not issue the+same untitled name twice in a session. Round 4 found a real title-collision bug in SAVED+documents and I made path the identity everywhere — including where there is no path. Both+halves are now true at once: path first when there is one, title when there is not.++### Why 89 mock tests passed++The mock resolved titles out of its own map, so it could never express the failure. It now+mirrors the real resolution exactly: a PATH matches only a document that actually has one+(`reported_path` is `""` until saved, and the internal key is not a path), and a TITLE is+resolved by walking the open documents. That change alone makes the old behaviour fail 9 tests.++This is the fourth time a mock that modelled the easy case hid a real defect. The rule I should+have been applying: **the mock must model the API's CONSTRAINTS, not just its results.**++### Also++`HostError` carries a branchable `code` now, propagated through the protocol into+`errorCode` — the live failures came back with `errorCode: None` and prose only, and a caller+cannot branch on "document not open: Part2". `document_not_open`, `ambiguous_target` and+`no_target_document` are the codes.++`live-smoke.py`'s cleanup retries a close by the title SOLIDWORKS is actually reporting, and if+a document still cannot be closed it says so in one line, names it, and says plainly that it is+the suite's own unsaved scratch — not the user's. The live run left an orphan `Part2` and said+nothing about it beyond a failed check.++### An honest limit++`com.rs` is `cfg(windows)` and never executes in the mock suite, so no Linux test can kill a+mutation in it — I verified this by mutating the title-walk and watching every test stay green.+Its correctness rests on the cross-compile, on the mock mirroring its logic, and on the live+run. That is the gap the live run exists to close, and it is why the run found this and the+suite did not.++## Build notes — 2026-09-03 (round 10: live run 2)++**120 passed, 9 failed, no abort** — up from 22-and-aborted. The create → model → export flow+ran end to end on real hardware, which makes report-bugs #1 and #2 PROVEN FIXED rather than+diagnosed: eight formats exported with `saveErrorCode` clean, `documentRenamed:false`, the title+unchanged and real bytes on disk. The `Silent|Copy` path has now actually executed.++### The bug: one letter of case++`swx_save_as` was asked for `…\smoke.sldprt`. SOLIDWORKS reported the document at+`…\smoke.SLDPRT`. The ownership record kept the path we ASKED for; `prune_scratch` compared it+against the path SOLIDWORKS REPORTED; the exact string compare failed; the bridge disowned the+scratch document it had just created and then refused to close or clean it up. Four of the nine+failures cascaded from that, and an orphan was left on the machine.++Two fixes, because either alone would leave the class open:++- **`same_path`** compares Windows paths the way Windows does — case-insensitively, with+  separators normalised. Used by `owns_doc`, `prune_scratch`, `by_path`, and both backends'+  `host_owns`.+- **The record stores the path SOLIDWORKS REPORTS**, not the one we asked for.++And the principle the reviewer named, which is the actual lesson: **ownership follows the+DOCUMENT, not the string that used to name it.** A non-copy `save_as` retitles and re-paths in+place, so the host moves its claim with it; `remember_created` now evicts by IDENTITY rather+than by title, which is what let an imported document displace the record of a saved one that+happened to share its name.++This is the mirror image of round 9's bug. Both came from identity being DERIVED at each use+instead of TRACKED through the document's life.++### Three mock-fidelity gaps, all of the same family++The mock could not express any of this, which is why 89 tests passed:++1. It did not **uppercase the extension** on save, so requested and reported paths always+   matched exactly.+2. It titled an **imported** document by bare stem, not `<stem>.SLDPRT`, so it could not produce+   the title collision the live run hit.+3. Its `open` **duplicated** an already-open document instead of returning it, an artifact that+   masked the ownership defect in the one test that came closest.++Fixing (1) alone broke three tests immediately — those were the tests that should have caught+the live bug. Fourth round running, the same lesson: **the mock must model the API's behaviour+and constraints, not just its happy-path results.**++### `ambiguous_target` was correct, and the situation was the bridge's fault++`swx_import` of the STEP the suite had just exported produced a second document with the same+title, so close-by-title refused — right answer, self-inflicted problem. Close-by-PATH now+resolves before the title-ambiguity check can fire (a path identifies exactly one document),+and `live-smoke` imports from a different stem so it stops manufacturing the collision.++### "ab is unreachable" must not read as "there are no windows"++Three failures were `ADOM_DIRECT_API_URL not in env` — the dev bridge was launched by hand, so+it never inherited ab's direct-API environment. `swx_window_info` returned `[]`, which is+indistinguishable from a real absence and made a launch artifact look like three bridge bugs.+It now returns `windows: null` with `abAvailable:false` and a hint naming the cause; `swx_status`+reports `abAvailable` up front; and `live-smoke` SKIPS the ab-dependent checks with a clear note+rather than failing them.++## Build notes — 2026-09-03 (round 11: live run 3)++**125 passed, 5 failed** (22-and-aborted → 120/9 → 125/5). The ownership fix held: `save_as`+retitles and the document stays ours, so everything the disown-on-save cascade had blocked now+runs — `CreateCircleByRadius`, `FeatureCut4` and `SetUserPreferenceInteger`, all three previously+shipped-but-never-executed, plus complete file cleanup.++### The bug: `swx_import` registered ownership on the server but not on the host++Three of the five failures were this one cause. `cmd_import` has THREE success paths — LoadFile4+returning a dispatch, a handle recovered from ActiveDoc, and the LoadFile2 fallback — and only+the first called `remember_created`. The live machine took one of the others, so the host's+independent veto refused to close the document the bridge had just imported.++Same shape as run 2's bug, one layer down: an ownership record that does not follow the document+through an operation the bridge itself performed.++**The fix is structural, per the reviewer's ask.** Registration is no longer a per-verb call. The+dispatch loop reads the `{created}` / `{imported}` document out of any successful result and+registers it via `Backend::register_created`, so no branch of no command can forget — and a verb+added tomorrow is registered by existing into the same result shape. `opened` is deliberately NOT+in `CREATED_KEYS`: opening the USER'S file does not make it ours, and a mutation adding it fails+two tests.++That is the third time a defect has come from identity being handled per-site rather than in one+place. The pattern across runs 1-3 is worth stating plainly: **all three live defects were+ownership records failing to follow a document through an operation the bridge performed**, and+none was a safety failure — the deny-by-default posture held throughout, and in every case the+bridge failed CLOSED, refusing to touch a document rather than touching the wrong one.++### A test-isolation defect found while fixing it++Two raw-stdio host tests spawned a com host with no `SWX_SCRATCH_DIR`, so they used the+developer's real scratch root — and the com host PERSISTS its created-document record. They+therefore inherited whatever had run before them, and passed or failed by accident; a mutation+run was what exposed it. Both have isolated scratch dirs now, and the suite is verified+repeatable across consecutive runs.++### The ab surface is now honestly reported as untested++The last two failures were deployment, not the bridge: a hand-launched exe never inherits+`ADOM_DIRECT_API_URL`. The preflight probe and `swx_dismiss_blocking_dialogs` now SKIP with a+note naming the cause, so a hand-launched bridge scores a clean sheet and the ab-delegated+surface reads as UNTESTED rather than broken — which is what it is.++### Re-grading++Nineteen verbs move to ✅ live-proven on run-3 evidence. Two that the evidence does NOT support+were held back: `fusion_close_window` (its ab path was SKIPPED, not exercised) and `fusion_state`+(it ran with `screenshot:false`, so the render-me half is still untested). Overclaiming those+would be exactly the failure this report exists to avoid.++## Build notes — 2026-09-03 (round 12: the launch answer, and an escape hatch nobody could open)++Three defects and one capability. Version **0.3.1** — a new verb and a new capability+change the surface, so lockstep moved.++### The gate was closed in the wrong direction++Drew authorized closing every leftover document from three live runs, including his own+blank `Part1`. The bridge was restarted with `SWX_ALLOW_USER_WRITES=1`, every call+carried `allowUserWrites` + `confirm` + `reason`, and it closed **3 of 5**:++- `swx_close_doc` → *"the com host refuses to close_doc: this document was not created+  by this bridge"*+- `swx_close_all_documents {closeUnsaved:true}` → skipped the dirty foreign documents+  unconditionally+- `swx_stop {force:true}` → `success:true, stopped:false`, declined silently++Twelve rounds have been spent making sure this bridge cannot write to somebody's data by+accident. This round is the other half of that, and it took three live failures to see+it: **an escape hatch nobody can open is not a safety property, it is a bug.** Every one+of these had the same cause — the server AUTHORIZED the action and then failed to tell+the host, or told it something weaker than what it had checked itself.++`swx_close_doc` built a `Grant` only on the `save:true` branch, so `close_doc+{save:false}` on a foreign document reached the com host carrying no evidence of the+permission at all; the host, holding its own independent veto, correctly refused. And the+host's veto re-checked `allowUserWrites` **alone** while the server checked all three+elements — so "two independent vetoes" was not two applications of one test, it was a+strong test and a weak one that happened to disagree in the direction that blocked the+user. Both sides now call `writes::missing_opt_in`, one function, and a `Grant` carries+the whole chain to the host so it has the same evidence to re-check.++`swx_stop` was the same class of dishonesty pointed the other way: the host does the+right thing (it re-attaches after `ExitApp` and reports that SOLIDWORKS is still there)+and the server dressed that up as a success. It is now `host_app_stop_declined`, with the+host's own reason preserved and a hint that points at the unanswered *"Save changes?"*+modal — explicitly **not** at `swx_kill`, which would discard exactly the work the dialog+is asking about.++### Two more found while proving the fixes++**A refused bulk close was closing things.** `swx_close_all_documents` ran its discard+loop and only then asked whether it was allowed to end the session — so in the default+posture it closed the bridge's own dirty documents, discarding their contents, and+returned a refusal. Side effects on the way to "no". Authorization moved to the top,+where it also supplies the grant the per-document closes need; the reordering is now+structurally enforced, because a mutation that moves it back **does not compile**.++**A document SOLIDWORKS will not answer for was being called clean.** The dirty flag was+read with `unwrap_or(false)`, so a document whose state could not be established never+entered the discard loop, `CloseAllDocuments(false)` then left it alone because it did in+fact need saving, and it came back in the host's `remaining` — left open by a call told to+close everything, with nothing anywhere saying why. That is one of the two documents live+run 3's cleanup could not shift. Same rule as everywhere else now: an unanswerable+question is not permission. Every document still open when the verb returns is named in+`skipped` with a reason, reconciled from the host's own after-the-fact view rather than+from the server's expectations.++The mock could not report unknown dirtiness at all, which is why that guard had no test —+the fourth time this round-by-round pattern has repeated: **the mock modelled the easy+case and hid a real defect.**++### THE LAUNCH ANSWER++For two rounds this bridge reported that SOLIDWORKS Connected "cannot be launched+programmatically", on live evidence: `CoCreateInstance` spawns a process that puts up+*"SOLIDWORKS Design must be launched from the 3DEXPERIENCE Platform"* and never attaches.+The evidence was real and the conclusion was wrong, because it was drawn from the wrong+experiment. The Start-Menu shortcut the Platform installs does not run `sldworks.exe`:++```+CATSTART.exe -run "SWXDesktopLauncher.exe"+             -object "--AppName=\"SWXCSWK_AP\" -tenant=<TENANT> -monoapp+                      -3DRegistryURL=https://<region>-makers-registry.3dexperience.3ds.com"+             -nowindow+```++The refusal was **ours**, for bypassing the launcher chain. `swx_start` now invokes that+shortcut — deliberately the `.lnk` itself and never a hand-assembled CATSTART command+line, because the shortcut is the sanctioned artefact and carries that user's own tenant,+whereas a command line we built would be a guess at it.++Design notes worth keeping: the shortcut is chosen by a **ranked** pure function, not+"first `.lnk` found", because a Start-Menu group holds an uninstaller and a pile of side+tools next to the application, and no shortcut at all resolves to `Blocked` (which asks+the user) rather than to a guess. The route decision does not require `installed`, since a+shortcut IS evidence of an install and the exe globs miss the Connected layouts. And the+attach poll is **bounded** — a cold Connected start runs 1-3 minutes and the com host is+the server's only channel, so holding it would freeze `swx_progress` and every other verb;+the first version waited 45 seconds and did exactly that to its own test suite. It answers+`started:true, stillLaunching:true`, never a failure, because a failure invites a second+launch and that means two sign-in windows on somebody's desktop.++`host_app_launch_blocked` now means one thing only: **no shortcut could be found.**++### `swx_run_macro` — scaffolding, labelled as such++`ISldWorks::RunMacro2`, written from the documented signature. NOT run live; the response+says `provenLive:false` and the report grades it accordingly, because that line is the only+thing this report is for.++Its gate is the interesting part. Every other write here is bounded by two questions — is+the document ours, is the destination clear — and a macro answers neither: it is a VBA+project with the whole API in scope and the filesystem behind it. So `Kind::RunMacro` is+**always gated with no carve-out**, and gated *first*, before even the existence check, so+an unauthorized caller does not learn what is on somebody's disk. What is being authorized+is arbitrary code execution on a person's desktop, and the only honest gate for that is the+human saying so each time.++The bundled `resources/macros/adom-hello.swp` is a placeholder that says so in its own+comments. The real template will be **recorded** from SOLIDWORKS' macro recorder — the only+way to be sure of the module and procedure names it expects — and notably the obvious+hello-world, `SendMsgToUser2`, raises a modal, which this bridge must never do.++### Verification++61 verbs · 0.3.1 in lockstep · lib 74 · e2e 28 · protocol 11 (+1 ignored) · 0 failed ·+zero warnings on both targets · 3 consecutive clean runs · **14 mutations, 14 killed**+(one of them uncompilable, which is stronger than a test).++`tools/live-smoke.py` no longer aborts when the write opt-in is on — it could not+otherwise test the paths this round fixed — and every posture-sensitive check is explicitly+two-sided. It proves the launch route was FOUND but never fires it, because firing the+launcher while SOLIDWORKS is up is the one thing that must not happen; and there is no+posture in which it executes a macro.
docs/FUSION-PARITY-REPORT.mdadded+546
@@ -0,0 +1,546 @@+# SOLIDWORKS ↔ Fusion 360 bridge — parity report++**swx v0.3.0** vs the Adom Fusion 360 bridge v1.9.341 · written 2026-09-02++Drew asked for three things: open an existing file, create a new one, and *"learn EVERY capability of+the Fusion bridge, build a SW alternative for all of them, and tell me what is lacking when done."*+This is the third part. Every one of the **133 entries** in the Fusion bridge's `describe.py` catalog+(**132 real verbs** plus one documentation pseudo-entry, `fusion_open_by_urn_note`, which+`fusion_describe` filters out) is+below with a verdict. Nothing is claimed that was not observed — and the grading distinguishes+"the verb ran" from "the COM call underneath it ran", because on this build those are very different+things.++## The scoreboard++| Verdict | Count | Means |+|---|---:|---|+| ✅ **built, live-proven** | 19 | The SOLIDWORKS verb itself was RUN against the user's live install and did what it claims. |+| 🔬 **primitive proven live; verb never run** | 1 | The COM call underneath was executed live and returned what the code expects — but the verb itself has not run. |+| 🧩 **built, no COM involved** | 6 | Built and mock-tested, and makes no COM call at all — there is nothing a live SOLIDWORKS could add. |+| ⚠️ **built, mock-only** | 10 | Shipped and mock-tested; not executed live in any form. |+| 🔄 **adapted** | 5 | Built, deliberately different — the Fusion design does not transfer. Each says why. |+| ⛔ **refused by SOLIDWORKS** | 1 | Attempted live; SOLIDWORKS itself refuses it on this edition. |+| 🚫 **declined by design** | 2 | Buildable; not built, as a decision about etiquette rather than an absence of API. |+| ❌ **lacking** | 38 | Would make sense; not built. Each says what it would take. |+| ➖ not applicable | 51 | Fusion Electronics, EAGLE libraries, Autodesk MCP/installer — no SOLIDWORKS concept to bridge to. |++The SOLIDWORKS bridge ships **60 verbs**. The Fusion bridge advertises **57** in its `bridge.json`;+its `describe.py` catalog contains **133** entries, of which **132 are real verbs** — the odd one out+is `fusion_open_by_urn_note`, a documentation pseudo-entry that `fusion_describe` filters out of its+own output. Both numbers are below, and `describe.py` is the exact source. The gap is almost entirely **Fusion Electronics**: schematics, PCBs, EAGLE `.lbr` libraries,+Gerbers, 3D packages — 60+ verbs of an application SOLIDWORKS simply is not.++**The ✅ column now means what it says.** After three live runs against Drew's SOLIDWORKS Design+Professional for Makers 2026 — 22-and-aborted, then 120/9, then **125 passed / 5 failed** — nineteen+verbs have been executed end to end on real hardware, including the whole+create → model → inspect → export flow this bridge exists for. What remains ⚠️ is genuinely+untested: the assembly verbs (no assembly with components could be built on this edition),+`swx_stop`/`swx_kill` (deliberately never run against a live session), and the ab-delegated window+and dialog verbs (the dev bridge was launched by hand, so it never inherited ab's direct-API+environment — those are reported as SKIPPED, not passed).++## Live-run status — read this before trusting a ✅++🔬 means: **the exact COM call was executed against the user's live SOLIDWORKS Design Professional for+Makers 2026 (3DEXPERIENCE R2026x, sldworks.exe 34.3.0)** during this build, through the v0.2 bridge's+`swx_com_eval` escape hatch, and returned what the v0.3 code expects. That is how all four v0.2 bugs+below were found. It is real evidence, and it is **not** the same as the verb having run.++✅ is reserved for the handful of verbs whose v0.3 code path was itself exercised live — which today+means the v0.2 verbs that ran during the probe session and are unchanged.++**This has now happened.** Three live runs (2026-09-03) drove the v0.3 binary against the real+application. What follows is the record of the first attempt, kept because it is where the+edition-launch constraint was found:++1. Closing a stuck SOLIDWORKS modal (one my own export probe had raised) took SOLIDWORKS down with it.+   No documents were open and nothing was lost.+2. Attempting to restart it exposed the launch constraint below; the resulting refused instance was+   identified by pid and removed, clearing the modal from the user's screen. Shortly after, the desktop+   disconnected from the ab relay entirely.++`tools/live-smoke.py` is the suite that closes this gap. It builds a real solid, reads the geometry back,+exports eight formats, checks the bytes on disk, and asserts SOLIDWORKS ends with **exactly** the+documents it started with. Run it once the desktop is back and SOLIDWORKS has been started from the+3DEXPERIENCE Platform:++```bash+python3 tools/live-smoke.py+```++## The four v0.2 bugs the live probes found++All four shipped in v0.2 and all four were invisible to 49 passing mock tests. This is the argument for+live validation, stated as evidence rather than as a principle.++**One caveat that applies to two of these.** The live byte counts quoted below (a 15,836-byte STEP, a+22,304-byte IGES) came from probes using `Silent` ALONE — which is precisely how the rename bug was+found. The shipped fix uses `Silent|Copy`, and **no export has ever run with those options**; it is+also unknown whether Copy mode is valid for PDF/PNG/JPG/TIF. So bugs #1 and #2 are DIAGNOSED with live+evidence and FIXED on reasoning, not fixed-and-verified. `tools/live-smoke.py` asserts+`saveErrorCode==0`, `documentRenamed==false` and an unchanged document title for every format, which+is what will settle it.++| # | Bug | Symptom | Fix |+|---|---|---|---|+| 1 | `SaveAs3` returns `swFileSaveError_e` (a long, `0` = success), **not a bool** | Every successful export reported `success:false` while writing perfectly good bytes. Probes wrote a 15,836-byte STEP and a 22,304-byte IGES that the bridge called failures. | Read the return as an error code; decode the bit flags into English. |+| 2 | Exports used `swSaveAsOptions_Silent` (1) alone | Silent **renames the open document**: the user's `bracket.sldprt` silently became `bracket.step` in memory. Observed live — a scratch part came back titled `probe.SLDPRT` after an export. | Exports now pass `Silent\|Copy` (3) and the verb asserts the title survived (`documentRenamed`). Only a deliberate `swx_save_as` uses plain Silent. |+| 3 | `InterferenceDetectionManager` was looked for on `ModelDocExtension` | It is a member of **`IAssemblyDoc`**. Every interference check failed with "unavailable". | `$doc.InterferenceDetectionManager()` — confirmed live to return the object. |+| 4 | `Feature::GetErrorCode2(bool, byref BSTR)` | Uncallable late-bound on this build at any arity, so the feature walk hit its error branch for **every** feature: an empty assembly reported 16 "errors". | `GetErrorCode()` (no arguments) — confirmed live to return 0 — plus `Extension.GetWhatsWrongCount()` as a cross-check. |++## What five rounds of adversarial review found — and the design change that ended it++Worth stating plainly, because it calibrates everything above: the safety guarantees this bridge+advertises were each wrong at least once, and were caught by review rather than by the test suite.++| Round | Found | Severity |+|---|---|---|+| 1 | VARIANT double-free — every BSTR/IDispatch argument freed twice (heap corruption on the first real `swx_open`) | Critical |+| 2 | The VRML block tested the `format` argument; `SaveAs3` keys off the destination EXTENSION, so the per-format aliases could never trigger it. `swx_run_script` silently built geometry into the user's open document. The DSL's `save_as` bypassed path validation and renamed in place. Dialogs were closed without proving they belonged to SOLIDWORKS. | 3 Critical, 2 High |+| 3 | **`targetDocument` authorized one document and the bridge mutated another** — the gate resolved ownership from it, but only one verb forwarded it, so the com host fell back to ActiveDoc and `swx_save_as` renamed and relocated the user's part. Ownership also failed OPEN on title reuse (SOLIDWORKS restarts its `Part1` numbering every session). `swx_open` and `swx_com_eval` were unguarded roads to the same COM calls. | 2 Critical, 4 High |+| 4 | **A title is not an identity.** Ownership was `(title, session)` and the host preferred the title over the path — so with the user's `C:\users\thing.sldprt` and the bridge's `C:\bridge\thing.sldprt` both open, a `save_as` authorized against the bridge's copy renamed the USER's, with no confirmation. `swx_close_doc` turned out to resolve no target at all and discarded their dirty document. | 2 Critical |+| 5 | **`swx_close_doc {save:true}` was an ungated `Save3`** — the same call the gated `swx_save` makes — which chained with the deliberately-ungated `swx_props_set` to write bridge-authored data into the user's file. And `save_as`/`export`/`pack_and_go` had **no overwrite protection at all**, silently destroying existing files; the modelling DSL had shipped that exact guard, in one of four places. | 2 Critical, 4 High |++Every one of those defects is in **one surface**: the bridge writing to something the user owns,+through a route whose guard had been forgotten. Every one was **a guard that existed and could be+walked around**, never a guard nobody had thought of — and three times the fix itself introduced the+next one.++### The design change++After five rounds, gating routes was abandoned as a strategy, because there is always another route.+**Writes are now DENY-BY-DEFAULT at a single choke point** (`src/writes.rs`). `save`, `save_as`, all+ten `export` aliases, `bom {format:"csv"}`, `pack_and_go`, `close_doc`, `props_set`,+`set_parameter`, `set_preference`, `run_script`, `rebuild_check`, `stop` and+`close_all_documents` all pass through one function that refuses unless **both**:++1. the document is one this bridge created, **in this SOLIDWORKS session**, and+2. the destination path **does not already exist**.++The only way past is an opt-in a caller cannot grant itself: the process must be started with+`SWX_ALLOW_USER_WRITES=1` **and** the call must carry `allowUserWrites:true`, `confirm:true` and a+`reason`. Every granted exception is recorded in `swx_action_ledger`, and `swx_status` /+`swx_describe` report `userWrites`.++Crucially the **com host enforces the same two rules independently, on its dispatch loop** — it keeps+its own record of the documents it created, reads the opt-in from the environment it inherited, and+refuses any command not on its read-only list. Rounds 3, 5 and 6 all turned on that split; round 6+found the first version of the host veto covering a remembered list of seven commands, so a forged+`run_script` sketched and extruded into the user's document while a forged `save` was correctly+vetoed. Keying off what is SAFE rather than what is dangerous makes a new command deny-by-default.++What the default posture still does, fully: read and inspect everything, create documents, model in+them, and export to paths that do not exist yet. What it cannot do is touch data the user already+had. That is the trade this bridge should have started with, and it is the honest answer to a defect+class that survived four separate attempts to fix it one route at a time.++An eighth round found `swx_close_window` closing the user's "Save changes?" modal in the default+posture — the one verb among the session-enders with neither the choke point nor the+`neverAutoAnswer` refusal its own sibling had, and advertised as `closable:true` by+`swx_window_info`. Alongside it: `is_frame_window` exempted an EMPTY window class (inverting its own+fail-safe), `swx_open {readOnly:false}` took a write lock on the user's file ungated, and+`swx_screenshot` forwarded a free-text title to ab so it would capture any window on the desktop.++A seventh round found the write surface verifiably closed — every mutating command forged over raw+stdio was refused by the host's own veto — and the remaining hole in **the half of the bridge that+never speaks to the com host**: `swx_kill` force-killed SOLIDWORKS in the default posture on gates it+could write for itself, and `swx_close_window` would close the application FRAME, because+`ownerConfirmed` is true precisely when a window is most provably SOLIDWORKS' and the main window is+the most provable there is. Both now go through the choke point; a frame is refused outright.++A sixth round found the design was right but **incompletely applied**: `authorize` was wired+into seven verbs while `swx_bom {format:"csv"}` (a SERVER-side `std::fs::write` that overwrote an+existing file and reported success), `swx_props_set` and `swx_rebuild_check` wrote around it, and the+host's veto covered a remembered list rather than everything. All are fixed, with one regression test+per route.++None of this replaces running `tools/live-smoke.py`. "The author says it is safe" has been the+weakest evidence in this project five times running.++## What the three live runs proved++| Run | Result | What it established |+|---|---|---|+| 1 | 22 passed, **aborted** | The safety machinery works on real hardware: Drew's own `Part1` was open, the suite created its own document, never touched his, aborted on the first failure, removed every file it wrote, and `swx_reset_workspace` reported his document `skipped: "not created by this bridge in this SOLIDWORKS session"`. Also confirmed the Connected edition cannot be launched programmatically. Found: an unsaved document was unaddressable by every verb. |+| 2 | 120 passed, 9 failed | The **create → model → export** flow ran end to end. A 50×30×20 mm solid built and read back at 30000 mm³; material set and mass agreeing (aluminium, 81 g); a dimension driven to 25 mm with the model actually moving; **eight formats exported with real bytes, `saveErrorCode` clean and `documentRenamed:false`** — which is report-bugs #1 and #2 proven FIXED, not merely diagnosed, since the `Silent\|Copy` path had never actually executed before. Found: ownership did not survive the bridge's own `save_as`. |+| 3 | **125 passed, 5 failed** | The previously-unproven signatures ran: `CreateCircleByRadius`, `FeatureCut4`, `SetUserPreferenceInteger` (written and verified by reading back), `ActivateDoc3`, assembly and drawing creation with their real untitled names. Cleanup removed every file it wrote. Found: `swx_import` did not register ownership host-side. |++Measured on that machine, all far inside their `bridge.json` budgets: `run_script` p90 10.2s (budget 420),+`new_document` 9.2s (180), `import` 7.8s (420), `save_as` 2.7s (420).++Three defects across three runs, and all three were the same shape — **an ownership record that did+not follow the document through an operation the bridge itself performed**. None was a safety+failure; the deny-by-default posture held throughout, and in each case the bridge failed CLOSED,+refusing to touch a document rather than touching the wrong one.++## The headline: what SOLIDWORKS genuinely cannot do that Fusion can++### 1. It cannot be launched. (SOLIDWORKS Connected / Makers)++`fusion_start` launches Fusion and waits for its add-in. The SOLIDWORKS equivalent **does not exist on+this edition**. `CoCreateInstance(SldWorks.Application)` returns `CO_E_SERVER_EXEC_FAILURE`+(`0x80080005`), and launching `sldworks.exe` directly produces a process that puts up:++> *SOLIDWORKS Design must be launched from the 3DEXPERIENCE Platform or from the desktop shortcut created+> from the Platform. Do you want to go to the 3DEXPERIENCE Platform?*++…and never becomes a drivable COM server. Verified twice, live. Dassault has made starting the+application a **human-gated** act on the Connected editions.++Consequences, all encoded in the bridge: `swx_start` is attach-only and returns+`errorCode:"host_app_launch_blocked"` with instructions for the human; `swx_stop` refuses while documents+are unsaved and warns that it cannot start the app again; classic desktop SOLIDWORKS installs keep the+COM launch path, behind an edition check (`Detection::edition()` / `can_launch()`). There is no+equivalent of `fusion_install_fusion` either — Dassault publishes no silent installer.++### 2. There is no cloud file API reachable from the bridge — but this is LACKING, not N/A.++Fusion's cloud verbs (21 of them) work because Autodesk publishes **APS Data Management**, a REST API the+bridge authenticates against on its own. The SOLIDWORKS COM API exposes **nothing** equivalent — probed+live: `IsPLMConnected` and `GetPLMConnection` do not exist; `GetSearchFolders` and `EnumDocuments2` are+rejected. `swx_cloud_status` runs that probe on demand and reports it, with+`errorCode:"cloud_not_available"`, rather than pretending.++**What it would take:** 3DEXPERIENCE exposes 3DSpace/3DDrive REST behind a tenant-specific CAS/passport+login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`). That is a separate+OAuth project of roughly the size of the Fusion bridge's APS work — a real piece of work, not a+weekend's. Local files work fully in the meantime: `swx_find_files`, `swx_open`, `swx_save_as`,+`swx_export`.++All 21 cloud verbs are therefore filed **❌ lacking**, not "not applicable". The distinction matters+and an earlier draft of this report got it wrong: "no concept to bridge to" is true of a schematic+editor, and false of a file store that demonstrably exists and has a documented API. Calling buildable+work "not applicable" is how a gap quietly stops being on anyone's list.++### 3. There is no in-process scripting host.++`fusion_run_modeling_script` takes a **Python string** and runs it inside Fusion. SOLIDWORKS' scripting is+VBA — a macro *file* format driven through a UI — so there is nothing to `eval`. `swx_run_script` is a+typed JSON DSL instead. It is strictly less powerful and strictly more auditable, and it is validated+before the first COM call so a bad script never half-runs on a live CAD session.++### 4. There is no official MCP server.++Autodesk ships one and the Fusion bridge proxies it (5 verbs). Dassault ships none. Community SOLIDWORKS+MCP servers exist, but they wrap the same COM API this bridge already drives directly, so proxying one+would add a hop and a dependency for no new capability.++### 5. Assembly components could not be added programmatically on this install.++`IAssemblyDoc::AddComponent5` returned `Nothing` for every combination tried live — every+`swAddComponentConfigOptions_e` value, a saved and an unsaved assembly, an open and a closed part, and+the older `AddComponent4`. No error, no dialog: just nothing. The most likely explanation is that+SOLIDWORKS **Connected** does not permit local-file component references (documents are expected to live+in 3DSpace), but that is inference, not proof.++**This is the one real hole in the live evidence**, because it means `swx_bom`, `swx_interference` and a+per-component `swx_mass_properties` could not be exercised against a real multi-component assembly on+this machine. They remain ⚠️ mock-only. On a classic desktop SOLIDWORKS install, or with an assembly the+user already has, they should be re-tested first.++## What Fusion cannot do that SOLIDWORKS can++Worth stating, because the parity exercise is not one-directional:++- **No add-in to install, update or repair.** The Fusion bridge needs its add-in inside Fusion, and has+  verbs (`fusion_addin_status`, `fusion_restart_for_addin`) purely to manage that. This bridge drives+  SOLIDWORKS entirely out-of-process over COM. Nothing is installed into the CAD application, so nothing+  can drift out of step with it, and `fusion_restart_for_addin` has no counterpart because it needs none.+- **A far richer native export set, with no optimisation service.** Verified live from one part (with+  the `Silent`-alone caveat above — the byte counts prove the FORMAT works, not the shipped export+  path): STEP,+  STP, IGES, STL, X_T, X_B, SAT, 3MF, **GLB**, PLY, AMF, 3DXML, PNG, JPG, TIF, XAML and PDF all wrote+  real bytes. (All seventeen are in the bridge's format table — XAML was proven live but missing from+  it until the review caught the discrepancy. OBJ and U3D are listed too, deliberately: they are+  refused by SOLIDWORKS with error 256, and listing them means the caller gets that accurate refusal+  instead of the bridge's generic "unsupported format".) Fusion needs a separate optimisation service+  for its GLB; SOLIDWORKS writes one directly.+- **Configurations.** A single SOLIDWORKS document carries many parametric configurations, and custom+  properties are scoped per configuration. The BOM aggregates per *(file, configuration)* pair for+  exactly this reason. Fusion has no equivalent first-class concept.+- **Pack and Go.** One call collects a design plus every reference into a portable folder.+- **Interference detection** and **a rebuild-health census** are native MCAD analyses with no Fusion+  bridge equivalent.++## What this bridge will not do, on purpose++These are not gaps; they are decisions, and each has a reason earned during this build.++- **No foreground, no clicks, no keystrokes.** Fusion's bridge has `fusion_click_fusion`, `send_key` and+  `fusion_prefs_open` (which drives a modal settings dialog). This bridge is COM-only. The user is+  working in that application.+- **Dialogs are censused, not dismissed.** `swx_dismiss_blocking_dialogs` reports by default. Closing+  needs `close:true` + `reason` + `confirm`, and a dialog classified `neverAutoAnswer` (Save changes?,+  Document Recovery, licence) is never closed at all. The reason is first-hand: on 2026-09-02 closing a+  stuck SOLIDWORKS modal through the window manager ended the application.+- **VRML export is blocked outright.** `.wrl` raised a modal option sheet and hung the COM call until the+  watchdog killed the host — 110 seconds of a wedged CAD application, and the dialog stayed on screen.+  `swx_export` refuses it with `errorCode:"format_blocked"` before it reaches COM.+- **Unsaved work is never discarded silently.** `swx_stop` and `swx_kill` refuse while documents are+  dirty; `swx_close_all_documents` leaves them open unless told otherwise; `swx_reset_workspace` closes+  only documents the action ledger proves this bridge created.++## Verb-by-verb++All 133 verbs in the Fusion bridge's `describe.py` catalog, grouped by its own sections.++### A. Lifecycle & app state — 15 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_addin_status` | ➖ not applicable | — | As above — no add-in, so no add-in health. `swx_status.com.attached` is the equivalent liveness fact. |+| `fusion_close_window` | ⚠️ **built, mock-only** | `swx_close_window` | Delegates to ab's `desktop_ui_window {action:"close"}`. Gated on reason + confirm because of what was learned live: closing a SOLIDWORKS modal this way took the whole application down. |+| `fusion_demo` | ❌ **lacking** | — | A guided tour verb. Deferred to v0.4 — worth having once the verb surface settles. |+| `fusion_demo_progress` | ❌ **lacking** | — | Companion to fusion_demo. |+| `fusion_get_app_state` | ✅ **built, live-proven** | `swx_get_app_state` | Same shape (`activeDocument`, running) plus `documents[]`, `documentCount`, `unsavedDocuments`, `workspace` (the active document's type — SOLIDWORKS' nearest thing to a Fusion workspace), `busy` (`CommandInProgress`, proven live), `processId` and `mainHwnd` (`Frame().GetHWnd()`, proven live → 1836650). **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_install_fusion` | ➖ not applicable | — | Autodesk publishes a silent Client Downloader; **Dassault publishes no equivalent**. SOLIDWORKS is installed either by a reseller's Installation Manager with a serial, or — for the Makers edition — from the 3DEXPERIENCE Platform store. There is no unattended install to wrap. |+| `fusion_kill` | ⚠️ **built, mock-only** | `swx_kill` | `taskkill /F /IM SLDWORKS.exe`, delegated to ab's shell_execute so it lands in the user's Activity Log with the caller's reason. Double-gated (reason + confirm), refuses while documents are unsaved, and reports `unsavedKnown:false` when COM is too wedged to count. **Never executed** — killing the user's CAD session to test the kill verb is not a trade worth making. |+| `fusion_make_test_project` | ❌ **lacking** | — | `swx_new_document` + `swx_run_script` compose into exactly this in two calls; a canned fixture verb was not worth a verb slot. |+| `fusion_notify_owner` | ❌ **lacking** | — | ab has notification verbs; the bridge does not use them. A one-line wrapper, deferred: nothing in the MCAD flow yet needs to page the user. |+| `fusion_readiness` | 🧩 **built, no COM involved** | `swx_readiness` | Detection only — it makes no COM call at all, which is the point of a readiness probe. v0.3 adds `edition` and `canLaunchProgrammatically`, the facts a caller needs before trying to start the app; both are unit-tested against the real install layouts. |+| `fusion_restart_for_addin` | ➖ not applicable | — | This bridge ships **no add-in**. It drives SOLIDWORKS entirely out-of-process over COM, so there is nothing to install into the app and nothing to restart for. That is a genuine architectural advantage over the Fusion bridge, which needs its add-in installed and kept in step. |+| `fusion_set_auto_update` | ➖ not applicable | — | Fusion auto-updates itself; SOLIDWORKS updates are service packs pushed by the Installation Manager / Platform, with no COM surface. |+| `fusion_start` | 🔄 **adapted** | `swx_start` | Attach-only on SOLIDWORKS Connected. **This is the single biggest divergence.** `CoCreateInstance(SldWorks.Application)` spawns an sldworks.exe that refuses with *"SOLIDWORKS Design must be launched from the 3DEXPERIENCE Platform or from the desktop shortcut created from the Platform"* and never becomes a drivable COM server — verified live on 2026-09-02 (it left a modal on the user's screen and a dead process behind). swx_start therefore ATTACHES; if nothing is running it returns `errorCode:"host_app_launch_blocked"` and tells the caller to ask the human. The CoCreateInstance path is kept for classic desktop SOLIDWORKS, behind `Detection::can_launch()`. |+| `fusion_stop` | ⚠️ **built, mock-only** | `swx_stop` | `ExitApp`. **Never run** — deliberately: the machine this was built against is a Connected edition the bridge cannot restart, so testing the quit verb would have ended the session. v0.3 additionally refuses while documents are unsaved, matches only the specific RPC-disconnect HRESULTs, and re-probes `GetActiveObject` to VERIFY the application really went away instead of trusting `ExitApp`'s return. |+| `fusion_uninstall` | 🧩 **built, no COM involved** | `swx_uninstall` | Removes only the bridge's own artifacts — `exports/`, plus v0.3's `ledger.jsonl`, `timings.json`, `settings.json` — never ab's cache root, never SOLIDWORKS.. Touches only the bridge's own scratch directory. The v0.3 additions (ledger/timings/settings removal) are asserted by the mock suite, on disk. |++### B. Documents & modelling — 13 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_activate_document` | ✅ **built, live-proven** | `swx_activate_document` | `ActivateDoc3(name, false, 0, byref errors)`. Signature not executed live (the relay went down before redeploy); the byref out-param is marshalled explicitly. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_assembly_bom` | ⚠️ **built, mock-only** | `swx_bom` | Quantities per (file, configuration) with custom-property columns, JSON or CSV. **Not live-provable on this machine** — see the AddComponent5 finding: no assembly with components could be built. |+| `fusion_close_all_documents` | ⚠️ **built, mock-only** | `swx_close_all_documents` | `CloseAllDocuments(includeUnsaved)`. Confirm-gated, and unsaved documents are LEFT OPEN unless `closeUnsaved:true` — `wouldPrompt[]` names them. Discarding a user's unsaved model because a script wanted a clean slate is not the bridge's call. |+| `fusion_close_document` | ✅ **built, live-proven** | `swx_close_doc` | Now targets by `path` OR `name` (a document created by swx_new_document has no path until it is saved, so its title is the only handle). **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_document_info` | ✅ **built, live-proven** | `swx_document_info` | `name`/`productType`/`isSaved` mirrored, plus `configurations`, `customPropertyCount`, `needsRebuild`, `dirty`. `isSaved` is derived from `GetPathName()` being empty — the one reliable never-saved signal SOLIDWORKS gives. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_execute_text_command` | 🔄 **adapted** | `swx_com_eval` | Fusion's raw internal-command escape hatch; ours is a late-bound `$sw`/`$doc` call chain with string/number/boolean/**null** literals (null added in v0.3 for optional object params). Reason-gated. This is what every live finding in this report was discovered with. |+| `fusion_get_design_info` | ✅ **built, live-proven** | `swx_design_info` | features / sketches / bodies / components / configurations / material / featureErrors / needsRebuild. Every underlying call was run live. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_get_parameters` | ✅ **built, live-proven** | `swx_get_parameters` | Two sources merged: the equation manager (`GetEquationMgr`, live) for global variables, and named dimensions (`Parameter("D1@Boss-Extrude1").SystemValue` → 0.02, live) for model dimensions. Values in SI metres AND `valueMm`. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_inspect_bodies` | ✅ **built, live-proven** | `swx_inspect_bodies` | `GetBodies2(0,true)` proven live (returned 1 body on the built solid). Per body: bbox, `sizeMm`, `volumeMm3`, `areaMm2`, `massKg`, `centerOfMassMm`, `faceCount` — in MILLIMETRES, matching Fusion's `units:"mm"` contract. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_open_design` | ✅ **built, live-proven** | `swx_open` | `OpenDoc6` with `swOpenDocOptions_Silent`. Ran live and unchanged in v0.3. Arg is `path`; `filePath` is the spelling on `swx_import`. |+| `fusion_physical_properties` | ✅ **built, live-proven** | `swx_mass_properties` | Ran live as a v0.2 verb and is unchanged in v0.3: the 50×30×20 mm test box read back 3.0e-5 m³ and 0.03 kg at density 1000, then 0.081 kg at 2700 after `SetMaterialPropertyName2`. SI units (kg/m³/m²/m), not Fusion's cm³/cm². The per-COMPONENT breakdown for assemblies is **not built** — see the assembly finding. |+| `fusion_reset_workspace` | ✅ **built, live-proven** | `swx_reset_workspace` | Closes ONLY documents **this server process** created and has not saved. The sweep list is `Ctx::scratch_docs`, held IN MEMORY — not read back from the action ledger, which is the durable audit record and a different thing. The reason is that SOLIDWORKS names new documents `Part1`/`Assem1`, so a title remembered across restarts would eventually match a document the *user* made and close it; forgetting on restart fails in the safe direction. `titles:[...]` to be surgical, `skipped[]` says why each survivor survived. Stronger than Fusion's "close the Untitled scratch" heuristic. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_run_modeling_script` | 🔄 **adapted** | `swx_run_script` | Fusion evaluates a **Python string** because Fusion hosts Python in-process. SOLIDWORKS has VBA — a macro *file* format driven through a UI — so there is nothing to eval. Instead: a typed JSON DSL (`new_part`, `sketch_rect`, `sketch_circle`, `extrude`, `cut`, `set_material`, `set_prop`, `save_as`, `rebuild`, `zoom_fit`) over the exact COM sequence proven live. Strictly less powerful, strictly more auditable, and validated BEFORE the first COM call so a bad script never half-runs on a live session. |++### C. Export & import — 15 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_export_3mf` | ✅ **built, live-proven** | `swx_export_3mf` | LIVE: 6,672 bytes. **Caveat:** that byte count came from a probe using `Silent` ALONE — which is how the rename bug was found. The shipped path uses `Silent|Copy`, and **no export has ever run with those options**; whether Copy is even valid for PDF/PNG/JPG/TIF is unknown. `tools/live-smoke.py` asserts `saveErrorCode==0`, `documentRenamed==false` and an unchanged title for every format. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_export_dwg` | ⚠️ **built, mock-only** | `swx_export_dwg` | Same as DXF. |+| `fusion_export_dxf` | ⚠️ **built, mock-only** | `swx_export_dxf` | Alias ships. LIVE: refused for a PART (swFileSaveError_e 256) — DXF is a drawing/flat-pattern format in SOLIDWORKS. Expected to work from a `.slddrw`; **untested**, because no drawing was available. |+| `fusion_export_f3d` | ➖ not applicable | — | Autodesk's native archive format. |+| `fusion_export_fbx` | ❌ **lacking** | — | No FBX translator surfaced. STEP/3MF/GLB cover the interchange need; GLB in particular is native here. |+| `fusion_export_iges` | ✅ **built, live-proven** | `swx_export_iges` | LIVE: 22,304 bytes. **Caveat:** that byte count came from a probe using `Silent` ALONE — which is how the rename bug was found. The shipped path uses `Silent|Copy`, and **no export has ever run with those options**; whether Copy is even valid for PDF/PNG/JPG/TIF is unknown. `tools/live-smoke.py` asserts `saveErrorCode==0`, `documentRenamed==false` and an unchanged title for every format. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_export_obj` | ⛔ **refused by SOLIDWORKS** | `swx_export {format:"obj"}` | REFUSED by SOLIDWORKS for a part on this edition — `SaveAs3` returned swFileSaveError_e 256 and wrote nothing. `obj` is deliberately kept in the bridge's format table so the caller gets SOLIDWORKS' own accurate refusal rather than a generic "unsupported format"; no alias verb ships for it. |+| `fusion_export_optimized_glb` | ✅ **built, live-proven** | `swx_export_glb` | **GLB export works natively** (LIVE: 4,468 bytes) — a pleasant surprise, since Fusion needs a separate optimisation service for its GLB. No mesh optimisation step is built; the file is whatever SOLIDWORKS writes. **Caveat:** that byte count came from a probe using `Silent` ALONE — which is how the rename bug was found. The shipped path uses `Silent|Copy`, and **no export has ever run with those options**; whether Copy is even valid for PDF/PNG/JPG/TIF is unknown. `tools/live-smoke.py` asserts `saveErrorCode==0`, `documentRenamed==false` and an unchanged title for every format. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_export_sat` | ✅ **built, live-proven** | `swx_export_sat` | LIVE: 5,960 bytes. **Caveat:** that byte count came from a probe using `Silent` ALONE — which is how the rename bug was found. The shipped path uses `Silent|Copy`, and **no export has ever run with those options**; whether Copy is even valid for PDF/PNG/JPG/TIF is unknown. `tools/live-smoke.py` asserts `saveErrorCode==0`, `documentRenamed==false` and an unchanged title for every format. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_export_skp` | ❌ **lacking** | — | No SketchUp translator surfaced on this install. Would need one installed (a SOLIDWORKS add-in), then the same SaveAs3 path every other format uses. |+| `fusion_export_step` | ✅ **built, live-proven** | `swx_export_step` | LIVE: 15,836 bytes written from the test solid. **Caveat:** that byte count came from a probe using `Silent` ALONE — which is how the rename bug was found. The shipped path uses `Silent|Copy`, and **no export has ever run with those options**; whether Copy is even valid for PDF/PNG/JPG/TIF is unknown. `tools/live-smoke.py` asserts `saveErrorCode==0`, `documentRenamed==false` and an unchanged title for every format. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_export_stl` | ✅ **built, live-proven** | `swx_export_stl` | LIVE: 684 bytes. **Caveat:** that byte count came from a probe using `Silent` ALONE — which is how the rename bug was found. The shipped path uses `Silent|Copy`, and **no export has ever run with those options**; whether Copy is even valid for PDF/PNG/JPG/TIF is unknown. `tools/live-smoke.py` asserts `saveErrorCode==0`, `documentRenamed==false` and an unchanged title for every format. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_export_usdz` | ❌ **lacking** | — | No USD translator on this install. GLB (proven live, 4,468 bytes) is the AR/web-viewer route instead. |+| `fusion_fetch_optimized_glb` | ➖ not applicable | — | Companion to Fusion's GLB optimisation service. |+| `fusion_import_step` | ✅ **built, live-proven** | `swx_import` | `LoadFile4(path,"r",null,byref errors)` with a `LoadFile2` fallback. Arg name `filePath` mirrors Fusion. Not executed live. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |++### D. Introspection, windows & etiquette — 13 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_action_ledger` | 🧩 **built, no COM involved** | `swx_action_ledger` | Append-only `{at, action, detail}` in the bridge's scratch dir. Pure bridge bookkeeping — it makes no COM call at all, so there is nothing about it a live SOLIDWORKS could prove. Exercised by the mock suite; the file it writes is asserted on disk. |+| `fusion_alerts` | ❌ **lacking** | — | Fusion's add-in collects in-app alerts. SOLIDWORKS' equivalent surface is dialogs, which `swx_dismiss_blocking_dialogs` censuses; a persistent alert list is not built. |+| `fusion_cancel_run` | ❌ **lacking** | — | No cancel. A wedged COM call is killed with the com-host child (which the server does automatically on timeout) rather than cancelled — SOLIDWORKS' API offers no cooperative cancellation. |+| `fusion_dismiss_blocking_dialogs` | 🔄 **adapted** | `swx_dismiss_blocking_dialogs` | **Report-only by default.** Fusion dismisses; this bridge censuses and classifies, and closing needs `close:true` + `reason` + `confirm`. Reason, from this build: closing a stuck SOLIDWORKS modal via the window manager on 2026-09-02 **took the whole application down**. A dialog classified `neverAutoAnswer:true` (Save changes?, Document Recovery, licence) is never closed at all. |+| `fusion_live_feed` | ❌ **lacking** | — | A streaming screen feed. `swx_state {screenshot:true}` gives single background frames; a feed is v0.4. |+| `fusion_prove_result` | 🧩 **built, no COM involved** | `swx_progress` | No COM call — job frames from the bridge's own registry, plus `swx_verb_times` for measured p50/p90. Fusion polls a `runId`; this bridge returns `active[]` and a terminal `progress` frame on the slow verb's own response. |+| `fusion_screenshot_fusion` | ⚠️ **built, mock-only** | `swx_screenshot` | Same verb; `titleContains` defaults to SOLIDWORKS, and `swx_window_info` supplies an exact hwnd. |+| `fusion_set_driving_badge` | ⚠️ **built, mock-only** | `swx_set_driving_badge` | Sticky taskbar overlay via ab's `desktop_taskbar`, applied to `Frame().GetHWnd()`. The hwnd source is live-proven; the badge call is not. |+| `fusion_set_seat_takeover` | ➖ not applicable | — | Autodesk single-seat licence takeover. SOLIDWORKS licensing (`GetCurrentLicenseType` returned 8 live) is read-only from COM. |+| `fusion_set_window_sizing` | ❌ **lacking** | — | Fusion resizes its own window after launch. This bridge never launches, moves or resizes SOLIDWORKS' window. |+| `fusion_state` | 🔬 **primitive proven live; verb never run** | `swx_state` | Full parity shape: `running`, `activeDocument`, `blockingDialogs[]`, `timings` (measured), `screenshot` (background PrintWindow via ab), `focusEvents` (always empty — this bridge never takes focus, so there is nothing to audit). `screenshot:false` skips the ab callbacks. |+| `fusion_take_screenshot` | ⚠️ **built, mock-only** | `swx_screenshot` | Delegates to ab's `desktop_screenshot_window`. |+| `fusion_verb_times` | 🧩 **built, no COM involved** | `swx_verb_times` | `stages: {verb: {count, p50, p90, minSec, maxSec}}`. Pure bridge bookkeeping — no COM call. Same standing as the ledger. |++### E. Preferences & MCP — 10 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_get_preferences` | ✅ **built, live-proven** | `swx_get_preferences` | `GetUserPreferenceInteger(53,0)` was read live, but `swx_get_preferences` is NEW v0.3 code that has never executed. Deliberately SMALL: only preferences `swx_set_preference` can write and read back. Fusion's theme / orbit scheme / gesture-nav have no COM-drivable SOLIDWORKS equivalent. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |+| `fusion_mcp_call` | ➖ not applicable | — | Autodesk ships an official Fusion MCP server that the bridge proxies. **Dassault ships none for SOLIDWORKS.** Community MCP servers exist but wrap the same COM API this bridge already drives directly, so proxying one would add a hop and a dependency for no capability. |+| `fusion_mcp_enable` | ➖ not applicable | — | Autodesk ships an official Fusion MCP server that the bridge proxies. **Dassault ships none for SOLIDWORKS.** Community MCP servers exist but wrap the same COM API this bridge already drives directly, so proxying one would add a hop and a dependency for no capability. |+| `fusion_mcp_read` | ➖ not applicable | — | Read one Autodesk MCP resource. Same reason as the rest of the MCP family: Dassault ships no SOLIDWORKS MCP server, and a community one would wrap the COM API this bridge already drives. |+| `fusion_mcp_resources` | ➖ not applicable | — | Autodesk ships an official Fusion MCP server that the bridge proxies. **Dassault ships none for SOLIDWORKS.** Community MCP servers exist but wrap the same COM API this bridge already drives directly, so proxying one would add a hop and a dependency for no capability. |+| `fusion_mcp_status` | ➖ not applicable | — | Autodesk ships an official Fusion MCP server that the bridge proxies. **Dassault ships none for SOLIDWORKS.** Community MCP servers exist but wrap the same COM API this bridge already drives directly, so proxying one would add a hop and a dependency for no capability. |+| `fusion_mcp_tools` | ➖ not applicable | — | Autodesk ships an official Fusion MCP server that the bridge proxies. **Dassault ships none for SOLIDWORKS.** Community MCP servers exist but wrap the same COM API this bridge already drives directly, so proxying one would add a hop and a dependency for no capability. |+| `fusion_prefs_close` | 🚫 **declined by design** | — | As above. |+| `fusion_prefs_open` | 🚫 **declined by design** | — | Fusion opens its Preferences DIALOG and hands back a clickable screenshot. Not built BY DECISION, not for want of an API: driving a modal settings dialog on someone's live CAD session is the foreground behaviour this bridge refuses everywhere else. `swx_get_preferences`/`swx_set_preference` do the same job over COM, without touching the screen. |+| `fusion_set_preference` | ✅ **built, live-proven** | `swx_set_preference` | `ModelDocExtension::SetUserPreferenceInteger`, then READ BACK — `verified` is the field that matters. The getter is live-proven (`GetUserPreferenceInteger(53,0)` → 1); the setter is not. **Live-proven in run 3** (2026-09-03: 125 checks passed against SOLIDWORKS Design Professional for Makers 2026). |++### F. Cloud (APS → 3DEXPERIENCE) — 18 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_aps_browse` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_create_folder` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_download` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_file_info` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_get` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_open` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_recent` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_search` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_upload` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_versions` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_cleanup_cloud_files` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_list_cloud_files` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_list_cloud_projects` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_open_by_urn` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_open_cloud_file` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_save_to_cloud` | ❌ **lacking** | `swx_save_as` (local only) | Local save-as is built; there is no cloud destination to save TO. Same 3DSpace REST project as the rest of the cloud family. |+| `fusion_search_cloud_files` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_walk_cloud_tree` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |++### G. Libraries & 3D packages (Fusion Electronics) — 23 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_attach_3d_package` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_bind_library_3d` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_build_library_3d` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_capture_library_views` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_create_library` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_generate_package` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_install_library_bundle` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_library_manager` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_library_parts` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_make_3d_package` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_managed_library_create` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_managed_library_link` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_managed_library_pull` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_managed_library_push` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_managed_library_unlink` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_open_lbr` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_plan_library_import` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_preflight_lbr` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_show_3d_package` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_show_footprint` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_show_library` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_show_project` | 🔄 **adapted** | `swx_show_part / swx_show_assembly / swx_show_drawing` | Fusion's eight-surfaces contract, MCAD half only: open + activate + `ViewZoomtofit2` (live-proven) in the BACKGROUND, with `capture:true` for a background screenshot. Refuses with `wrong_document_type` if the target is the wrong kind, which Fusion's single verb cannot do. |+| `fusion_show_symbol` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |++### H. Electronics (schematic / PCB) — 11 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_board_info` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_board_stackup` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_detect_layers` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_electron_pan` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_electron_run` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_electron_select` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_electron_zoom` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_new_electronics_from_eagle` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_show_2d_board` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_show_3d_board` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_show_schematic` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |++### I. Manufacturing outputs — 4 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_export_bom` | ➖ not applicable | — | Electronics BOM. `swx_bom` is the mechanical one (Fusion's `fusion_assembly_bom` counterpart). |+| `fusion_export_cpl` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_export_gerbers` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |+| `fusion_set_design_rules` | ➖ not applicable | — | Fusion Electronics / EAGLE library tooling. SOLIDWORKS is a pure MCAD application with no schematic, PCB, or .lbr concept — there is nothing to bridge to. |++### J. Sign-in & licensing — 9 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_aps_forget_browser` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_get_browser` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_set_browser` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_set_client_id` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_signin` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_aps_status` | ❌ **lacking** | `swx_cloud_status` | Not built, and NOT because there is nothing to bridge to — 3DEXPERIENCE has a 3DSpace/3DDrive REST API that does this job. What it would take: an OAuth story against a tenant-specific CAS/passport login (this user's tenant is `oi000616940-usw1-makers-ifwe.3dexperience.3ds.com`), roughly the size of the Fusion bridge's APS work. There is no COM route at all — `swx_cloud_status` runs that probe on demand — so this is a separate project, not a missing verb. |+| `fusion_signin` | ❌ **lacking** | — | Filed as lacking, not n/a, by the same standard applied to the cloud verbs: 3DEXPERIENCE sign-in is a real, documented interface (the Platform launcher and its CAS/passport flow), and it is **the human gate that blocks `swx_start`** — so automating it is the single change that would most improve this bridge, not an absence of concept. What it would take: driving the 3DEXPERIENCE launcher's web sign-in the way the Fusion bridge drives Autodesk's, which is a browser-automation project with real credential-handling consequences. |+| `fusion_signin_2fa` | ❌ **lacking** | — | As above, plus the second factor. |+| `fusion_web_signin` | ❌ **lacking** | — | Autodesk web SSO via a pup browser. The 3DEXPERIENCE equivalent exists and is the door to both the launcher gate and the 3DSpace REST API — the same project, twice over. Not built. |++### K. Self-describe — 1 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_describe` | 🧩 **built, no COM involved** | `swx_describe` | Now also carries `scriptOps` (the modeling DSL's op list) and `exportFormats` (the live-verified format matrix).. Static catalog. The v0.3 additions (scriptOps, exportFormats) are asserted by the mock suite. |++### L. Doc-only catalog entries — 1 verbs++| Fusion verb | Verdict | SOLIDWORKS verb | Notes |+|---|---|---|---|+| `fusion_open_by_urn_note` | ➖ not applicable | — | Documentation pseudo-entry in the Fusion catalog, filtered out of fusion_describe. |++## The SOLIDWORKS verbs with no Fusion counterpart++| swx verb | Why it exists |+|---|---|+| `swx_new_document` | Drew's explicit ask, and Fusion has no twin verb (its documents arrive from the cloud or an import). LIVE-PROVEN recipe: `NewDocument(template,0,0,0)` with the template resolved at runtime — `ISldWorks::NewPart()` **hangs** on this install (>110s, killed by the watchdog). |+| `swx_find_files` | Disk search for `.sldprt`/`.sldasm`/`.slddrw`. Fusion's files are in the cloud, so it needs no such verb; SOLIDWORKS' are on disk, so it is the front door. |+| `swx_pack_and_go` | A SOLIDWORKS-native operation with no Fusion analogue. |+| `swx_interference` | Native assembly interference detection. |+| `swx_rebuild_check` | Force rebuild + a broken-feature census — the design-health first check. |+| `swx_props_get` / `swx_props_set` | Custom properties, per file or per configuration. These drive BOMs and title blocks; Fusion's equivalent is buried in its parameter/attribute model. |+| `swx_save_as` | The verb that gets a `swx_new_document` scratch part onto disk. `copy:true` writes a file without retitling the open document. |+| `swx_export_glb` | Native GLB, no optimisation service required. |+| `swx_cloud_status` | Exists specifically to give the honest 'no, and here is the probe that proves it' answer rather than a silent absence. |++## Recommended next steps++1. **Run `tools/live-smoke.py`** once the desktop is back and SOLIDWORKS has been started from the+   3DEXPERIENCE Platform. That is what converts 🔬 and ⚠️ into ✅ — or finds the next bug. It asserts+   the Silent|Copy fix, the `.wrl` refusal on all five roads to `SaveAs3`, the refusal to touch a+   document the bridge did not create, and — as a hard gate that runs even on an early abort — that+   SOLIDWORKS ends with exactly the documents it started with.+2. **Re-test the assembly verbs on a real assembly** — either one the user already has, or on a classic+   desktop SOLIDWORKS install where `AddComponent5` is expected to work. `swx_bom`, `swx_interference`+   and per-component mass properties all hinge on this.+3. **Test DXF/DWG/PDF export from a `.slddrw`.** They are refused for a part, which is expected; they+   should be the drawing story, and that is untested.+4. **Decide whether 3DEXPERIENCE cloud access is worth the OAuth project.** It is the largest remaining+   gap and the only one that is a matter of effort rather than of what SOLIDWORKS permits.+5. **Per-component mass properties** (`fusion_physical_properties` parity for assemblies) is a small+   addition once an assembly can be built.++## `swx_run_macro` — scaffolding, and labelled as such++Added 2026-09-03. `ISldWorks::RunMacro2(path, module, proc, swRunMacroUnloadAfterRun, [out] error)`,+written from Dassault's documented signature and CodeStack's worked examples — which+confirm both that a `.swp` is plain-text editable and that `RunMacro2` works from a+standalone executable, the two facts this verb depends on.++**It has not been run against a live SOLIDWORKS.** It is graded 🔬 and the response+says so in its own `_hint`, because this report's only value is the line between+"proven live" and "written from documentation". Two details in it are the ones most+easily got wrong, and both are guesses until a live run:++- the error is an **out parameter** (`swRunMacroError_e`), not the return value — the+  return is a bare bool, so a macro that fails to compile comes back `false` with the+  reason only in the out param;+- `swRunMacroUnloadAfterRun` is passed deliberately. Without it the VBA project stays+  loaded and an edited macro keeps running its **old** code, which is indistinguishable+  from the edit not having been saved.++The bundled `resources/macros/adom-hello.swp` is likewise a placeholder and says so in+its own comments. The real template will be **recorded** from SOLIDWORKS' macro+recorder rather than written by hand, because that is the only way to be certain of the+module and procedure names it expects — and because the obvious hello-world+(`SendMsgToUser2`) raises a modal, which this bridge must never do on somebody's desktop.++### The gate is the whole design++Every other write in this bridge is bounded by two questions — is the document ours, is+the destination clear. A macro answers neither: it is a VBA project with the full+SOLIDWORKS API in scope and the filesystem behind it, and nothing about the *call*+predicts what it will touch. So `Kind::RunMacro` is **always gated**, with no safe case+carved out: the process needs `SWX_ALLOW_USER_WRITES=1` and the call needs+`allowUserWrites:true` + `confirm:true` + a `reason`, every time. In the default posture+this verb refuses, always. What is being authorized is arbitrary code execution on+somebody's desktop; the only honest gate for that is the human saying so each time.
docs/RUST-PORT-BRIEF.mdadded+348
@@ -0,0 +1,348 @@+# Rust port brief — solidworks-bridge (swx)++Goal: replace the Python+PowerShell implementation in this repo with a single+Rust binary (`swx-bridge.exe`) of the SAME 23-verb surface and the same+response shapes. Quality bar: the kicad, pup, and native-browser bridges —+rich `_hint`s on every response, honest error codes, background etiquette,+progress blocks, self-cleaning scratch, a suite that cannot lie.++## Why Rust / what the SDK says++Adom Bridge (ab) treats compiled bridges as first-class: `spawn.kind: "exe"`,+ab spawns the entrypoint DIRECTLY appending `--port <port>` to argv (~10ms cold+start, no interpreter provisioning). Contract identical to node/python:++- Parse `--port N` from argv. Bind `ADOM_BIND_HOST` env (always 127.0.0.1;+  default to it when absent). NEVER 0.0.0.0 (firewall prompt).+- Bind the port FIRST, before anything slow. A failed bind = another instance+  owns it → print a line and exit 0 (single-instance guard). No SO_REUSEADDR.+- HTTP: GET `/status` and `/health` → 200 JSON with `{status:"ok", led,+  summary, tooltip, bridgeVersion, solidworks:{...}, mock}`. POST `/command`+  with `{"command":"swx_...","args":{...}}` → JSON result. Unknown path → 404.+- Every response ab relays VERBATIM to the calling AI. The `_hint` on every+  verb response IS the documentation the AI reads. Response contract keys:+  `success`, `errorCode` (stable, branchable — e.g. `host_app_not_installed`,+  `reason_required`), `windowEtiquette: "background"` on anything that touches+  windows, `progress` blocks on slow verbs (terminal frame percent:100 ++  elapsedSec) and a fast `swx_progress` verb returning `active[]` for polling.+- `swx_uninstall`: idempotent, non-interactive, fast; removes ONLY what the+  bridge created (`%LOCALAPPDATA%\Adom Bridge\bridges-cache\solidworks\`), never+  the host app or user docs. ab calls it with `{"cascade":true}` on app uninstall.+- Prune what you write: exports scratch dir capped (48h age, 300 files,+  oldest-first, rate-limited 1/10min).+- Caller identity: ab delivers `args.caller = {aiThread, containerName}` (and/or+  `X-Adom-Caller-*` headers). Log one compact line per verb:+  `[swx] <command> caller="<thread>" | args: {...}` (truncate args ~400 chars).+  Self-asserted — logging/UX only, NEVER authorization.+- Logging volume rules: one line per incoming verb; never per-item in loops;+  never a parallel log file; line-buffered stdout/stderr (ab captures them).+- bridge.json changes for the port: `spawn.kind:"exe"`,+  `entrypoint:"swx-bridge.exe"`, `killImageName:"swx-bridge.exe"`. Keep verbs,+  timeouts, detect, risk, uninstall, updateManifestUrl as-is.++## Architecture (required)++ONE binary, two modes:++1. **Server mode** (default): the HTTP bridge server. tiny_http + serde/serde_json+   (this is what the official hello-rust sample uses; see the size-optimized+   release profile in its Cargo.toml). Verb handlers port 1:1 from the Python+   `server.py` in git history / reference copy — same names, same arg names, same+   response keys, same hints (improve wording freely, never drop information).+2. **`--com-host` mode**: a child process the server spawns FROM ITS OWN EXE+   (`std::env::current_exe()`), speaking the same JSON-lines stdio protocol the+   PowerShell sidecar spoke: `{"id":N,"cmd":"...","args":{...}}` per line in,+   `{"id":N,"ok":true,"result":{...}}` / `{"id":N,"ok":false,"error":"...",+   "detail":"..."}` per line out, plus one `{"event":"ready","pid":N}` line at+   boot. Diagnostics to stderr only.++   WHY a child process and not an in-process COM thread: a wedged COM call+   (modal dialog, hung SOLIDWORKS) cannot be killed as a thread, but the child+   can be killed + respawned. The server owns: lazy spawn, one request in+   flight (mutex), per-request timeout, kill + respawn after crash/hang, stderr+   tail capture surfaced in `detail`. On Windows spawn the child with+   CREATE_NO_WINDOW (0x08000000) — no console may ever blip on screen.++3. **Backend trait** inside com-host mode:+   - `MockBackend` (all platforms; selected by `SWX_MOCK=1` or non-Windows):+     port of `sidecar/mock_host.py` — same canned data (3-row BOM with+     bracket/shaft/m4-screw, qty 2/1/8, mass 0.4173 kg, 1 interference, etc.)+     so the existing HTTP test expectations keep passing.+   - `ComBackend` (cfg(windows)): real COM via the `windows` crate,+     late-bound IDispatch (GetIDsOfNames + Invoke), STA-initialized main+     thread in com-host mode. Sidecar semantics to preserve from the PS+     version: attach via GetActiveObject("SldWorks.Application") first, only+     CoCreateInstance (launch) when `launch:true`; OpenDoc6 with+     swOpenDocOptions_Silent=1 and byref VT_I4 errors/warnings (fall back to+     legacy OpenDoc if it returns null); Save3(1, byref, byref); SaveAs3(path,+     0, 1) keyed off destination extension; CustomPropertyManager("").GetNames /+     Get4(name, false, byref BSTR, byref BSTR) / Add3(name, 30 /*text*/, value,+     2 /*replace*/); CreateMassProperty (Mass, Volume, SurfaceArea, Density,+     CenterOfMass safearray of f64); assembly GetComponents(topOnly) safearray+     of IDispatch → per-component GetSuppression()!=0 filter, GetPathName,+     ReferencedConfiguration, GetModelDoc2 → props; InterferenceDetectionManager+     (UseTransform=true, TreatCoincidenceAsInterference, GetInterferences /+     GetInterferenceCount, Done() in a finally); ForceRebuild3(false) + feature+     walk FirstFeature/GetNextFeature/GetErrorCode2; Pack and Go via+     Extension.GetPackAndGo → IncludeDrawings, SetSaveToName(true, dir),+     GetDocumentSaveToNames byref, Extension.SavePackAndGo. Doc types:+     .sldprt=1 .sldasm=2 .slddrw=3. Doc info shape: {title, path, type+     ("part"/"assembly"/"drawing"), config, dirty}.+     The COM layer CANNOT be exercised until SOLIDWORKS installs (trial serial+     pending) — it must COMPILE for x86_64-pc-windows-gnu, degrade gracefully+     (clear errors, never panic across the protocol boundary), and keep the+     `eval`→`swx_com_eval` escape hatch (in Rust: accept a limited expression —+     at minimum `<method>(args...)` chains on $sw — or document what it+     supports; reason-gated as today).++Verbs that DON'T go through COM (implement directly in the server, all+platforms): swx_status, swx_readiness, swx_describe, swx_progress,+swx_find_files (disk walk: .sldprt/.sldasm/.slddrw, skip ~$ lock files, dot/$+dirs, node_modules; newest first; limit + 150s guard; roots default to+~/Documents + ~/Desktop), swx_uninstall, swx_screenshot (POST to+ADOM_DIRECT_API_URL/command with X-Adom-Bridge-Token + forwarded+X-Adom-Caller-* headers + X-Adom-Caller-Delegate: solidworks — plain HTTP to+loopback, hand-roll over TcpStream or use a tiny client; never fail the verb+because the callback failed), swx_state (detection + docs via com-host when+running), and the BOM CSV assembly (sidecar returns rows; server sorts by name,+collects the union of property names as columns, writes CSV to the scratch dir).++Detection (server, cfg(windows)): App Paths registry key+HKLM/HKCU `...\App Paths\SLDWORKS.exe`, then path globs (Program Files+SOLIDWORKS Corp variants), plus HKLM\SOFTWARE\SolidWorks subkey enum for+registryVersions, plus tasklist check for SLDWORKS.exe running. Non-Windows:+installed:false. `swx_status` re-detects each call.++Host-app gate: when NOT mock and NOT installed, every COM-backed verb returns+`{success:false, errorCode:"host_app_not_installed", error:"SOLIDWORKS is not+installed", _hint:<trial-pending hint>}`. The trial hint: a 30-day desktop+trial was requested from Hawk Ridge Systems (reseller); serial arrives by+email; never tell the user to install by hand.++## Testing (adapted from the app-testing skill — build ALL of it)++The suite must not be able to lie. No test may assert by reading source files+as strings; every test drives the REAL compiled binary over HTTP/stdio.++1. **Harness**: build (debug) and spawn the real server binary on a free port+   with SWX_MOCK=1 and temp dirs for anything it writes; poll /status until+   healthy; always kill + clean up. Rust integration tests (tests/*.rs, use+   std or minimal deps) or keep/extend the existing Python tests/test_verbs.py+   (works: it drives HTTP exactly as ab does). Prefer BOTH: cargo test for+   Rust-side units (find_files filters, CSV assembly, prune logic, protocol+   framing) + the HTTP suite for end-to-end.+2. **Verb-coverage gate** (the interaction-coverage analog): read bridge.json+   `verbs[]` at test time and FAIL if any listed verb has no test entry, and+   FAIL if swx_describe returns a verb absent from bridge.json or vice versa.+   A new verb shipped without a test must turn the suite red.+3. **Error-gate analog**: every response must parse as JSON, carry a boolean+   `success` (or status ok for GET), never HTTP 500 on well-formed input; a+   malformed body → clean 400. Assert numbered error paths: unknown verb (hint+   lists valid commands), missing required args, wrong doc type for bom/+   interference, reason gate on swx_com_eval.+4. **Protocol e2e**: the real server spawning the REAL com-host child (mock+   backend) — the over-the-wire loop between our two processes: verb → child+   → response; child killed mid-run → next verb respawns it and succeeds+   (crash recovery is a required test); a child that answers garbage lines →+   server skips them without wedging.+5. **Effects, not existence**: swx_export writes a real file (assert bytes on+   disk); swx_bom csvPath exists and parses as CSV with the property columns;+   find_files honors query/types/limit and skips ~$ files (create real fixture+   files in a temp dir).+6. Exit non-zero on any failure. Suite runs green on this Linux container.++## Build requirements++- `cargo build --release --target x86_64-pc-windows-gnu` MUST succeed here+  (toolchain + mingw already installed). Also plain `cargo build` (linux) for+  the mock-mode test run. Windows-only code behind cfg(windows).+- Use the hello-rust release profile (opt-level z, lto, strip) for the shipped+  exe. Dependencies: tiny_http, serde, serde_json; windows + winreg behind+  [target.'cfg(windows)'.dependencies]. Justify any addition in Cargo.toml+  comments. No async runtime.+- Remove the Python implementation files (server.py, com_host.py, swx_detect.py,+  caller_identity.py, quiet_console.py, sidecar/*.ps1, sidecar/mock_host.py) —+  git history keeps them; port tests/test_verbs.py to drive the Rust binary.+  Update README.md (architecture diagram, dev instructions) and SKILL.md where+  they mention Python/PowerShell. Update bridge.json spawn block. Keep+  package.json/install.sh/uninstall.sh (skills pkg) as-is except doc touch-ups.+- Keep BRIDGE_VERSION and Cargo.toml version in lockstep: bump to 0.2.0.++## References on disk (read them)++- This repo pre-port (Python impl): `git show HEAD` — or the files before your+  removal commit. The response shapes and hints in server.py are the spec.+- Official Rust sample bridge: /tmp/claude-1001/-home-adom-project/ca530728-41cc-4f93-a92d-d32d4afe1153/scratchpad/hr/+  (src/main.rs, Cargo.toml, bridge.json — the exe contract in miniature).+- kicad-bridge latest release (the quality bar for hints/etiquette/logging):+  /tmp/claude-1001/-home-adom-project/ca530728-41cc-4f93-a92d-d32d4afe1153/scratchpad/kb-latest/ (server.py, caller_identity.py, bridge.json).+- pup-bridge page (README/SKILL/docs — the quality bar for docs + response+  design): /tmp/claude-1001/-home-adom-project/ca530728-41cc-4f93-a92d-d32d4afe1153/scratchpad/pup-bridge/+- Local skills: ~/.claude/skills/adom-bridge-sdk*/SKILL.md (the SDK, manifest,+  runtime contracts), ~/.claude/skills/pup/SKILL.md, ~/.claude/skills/native-browser-safety/SKILL.md.++## Non-goals for this port++- No publishing (release zip / wiki page) — a later step.+- No new verbs beyond the 23 (parity port + quality).+- No UI. No PowerShell anywhere.++## Build notes — 2026-09-01++What the port actually did differently from this brief, and why. Everything+here is a deliberate deviation, not a shortcut.++**Release profile: no `panic = "abort"`.** The hello-rust sample sets it for+size, but the com-host child catches panics (`catch_unwind`) and answers them+as ordinary `ok:false` responses — which needs unwinding. A late-bound COM call+meeting something it did not expect should cost one verb, not the user's whole+SOLIDWORKS session (open documents included). The exe is still 824 KB.++**Crash recovery is transparent, and narrowly so.** The brief asked that a+killed child be respawned by the next verb. Naively that costs one failed verb:+the server writes into a dead pipe, then reports it. So `ComHost::call` now+(a) reaps a child that has already exited BEFORE writing, and (b) retries once+if the write itself fails. The retry is deliberately limited to failures that+happen *before* the request reaches the child — nothing can have half-happened.+A child that dies MID-request is still reported, never silently re-run: quietly+repeating an export or a Pack and Go would be worse than the error. Stale-id and+non-JSON lines are skipped as specified, under an overall deadline.++**`swx_status.com.hostPid` (additive).** Which process holds the COM object is+the one fact you need to debug a wedge, and it is what makes crash recovery+observable — `tests/protocol.rs` kills that pid and asserts the next verb+succeeds against a *different* one. Nothing else in the response changed.++**`swx_com_eval` is a call-chain evaluator, not a script host.** There is no+PowerShell any more and Rust has no eval, so the escape hatch became a small+grammar: `$sw` / `$doc` rooted dotted chains with string, number and boolean+literals (`$doc.Extension.CustomPropertyManager("").GetNames()`). That is+exactly what prototyping a verb needs, and it is auditable, which for something+driving a live CAD application is the better trade. The parser lives in+`comhost/expr.rs` OUTSIDE `cfg(windows)` precisely so it is unit-tested on this+Linux host; only the evaluation is Windows-only. The verb's hints say what it+supports.++**lib + bin instead of one `main.rs`.** The integration tests need the crate's+own HTTP client to drive the binary, and the pure logic (CSV assembly, prune+selection, find_files filters, the eval grammar, path helpers) deserves unit+tests. Splitting `src/lib.rs` off gets both while the tests still spawn the REAL+`CARGO_BIN_EXE_swx-bridge`.++**Version lockstep is enforced by the compiler.** `BRIDGE_VERSION` is checked+against `CARGO_PKG_VERSION` in a `const` assertion — they cannot drift. The+suite additionally asserts `/status.bridgeVersion == bridge.json.version`, which+is what caught bridge.json still saying 0.1.0.++**`SWX_SCRATCH_DIR` override.** The Python fallback (`<repo>/.scratch` when+`LOCALAPPDATA` is unset) makes no sense for a shipped exe, and left the tests+writing into the developer's real cache. The root is now+`SWX_SCRATCH_DIR` → `%LOCALAPPDATA%\...` → OS temp, and `swx_uninstall` removes+that root — so "uninstall really deleted what the bridge created" became an+assertable fact instead of a claim.++**Two test-only knobs in the mock backend**, both documented in place and never+set in production: `SWX_MOCK_NOISE=1` makes the child emit a non-JSON line, an+event line and a stale-id response before every answer (this is how the+skip-what-you-cannot-parse path is proven over the real wire), and+`SWX_MOCK_SLOW_MS` gives the "cold start" real duration (this is how+`swx_progress` answering DURING a slow verb is proven).++**`_reportIssues` on every failure** and on the unknown-verb response, per+`adom-bridge-sdk-audit`. The Python version predated that contract.++**Small correctness wins carried over deliberately:** the mock's document titles+now use a real basename that splits on both separators (Python's+`os.path.basename` returned the whole `C:\...` string when the mock ran on+Linux); `detection.platform` reports `std::env::consts::OS` (`windows`/`linux`)+rather than Python's `win32`; the log line truncates on a char boundary, so a+non-ASCII folder name cannot panic the logger.++**Threading.** tiny_http is fed by a std `TcpListener` we bind ourselves, so the+single-instance guard is explicit and nothing enables address reuse. Four worker+threads serve requests — not for throughput (COM work serializes on the host+child regardless) but so `swx_progress` can answer while a 90-second+interference check is in flight. There is a test for exactly that.++**Not done, by design:** the COM backend has never executed — it compiles for+`x86_64-pc-windows-gnu` and is written to fail honestly (every error carries+what SOLIDWORKS said, via EXCEPINFO), but its live shakedown waits on the trial+serial. `swx_screenshot`'s ab callback is exercised only in its "ab unreachable"+shape, which is the only shape available off a real desktop.++## Build notes — 2026-09-01 (round 2: adversarial-review fixes)++The adversarial reviewer and a parity diff found real defects. What changed:++**CRITICAL — VARIANT double-free (variant.rs).** The reviewer was right and my+earlier comment was wrong: VARIANT has real drop glue in windows 0.62.2+(`needs_drop::<VARIANT>()` is true), so building the DISPPARAMS array with+`ptr::read` made a second owner that double-freed every BSTR / IDispatch+argument. Fixed: the arg array is now `Vec<ManuallyDrop<VARIANT>>` — the `Var`+arguments stay the sole owners and clear exactly once. Re-audited every Var+handoff (`Var::dispatch`, `as_dispatch`, `as_array`, `coerce`): each is now+balanced one-AddRef/one-Release. This was the one that had to be right before+the serial lands.++**HIGH.** find_files now collects all matches, sorts by mtime, THEN truncates,+so the limit can no longer drop the newest file (regression test added).+swx_uninstall removes ONLY `<cache>/exports`, best-effort per item, never the+cache root ab owns (unit + e2e tests). swx_status (the statusVerb) try_locks a+non-blocking snapshot so polling it never waits on a 580s Pack-and-Go; shutdown+kills the child by pid when the request lock is held, so the cascade can't+block. HTTP workers now catch_unwind at two layers (per-verb → JSON error with+_reportIssues; per-request → worker survives); test-only fault injection+(`SWX_TEST_PANIC`, debug builds only) proves it end to end. swx_bom relabelled+risk "write", and a path-traversal guard (`safe_out`) refuses a relative or+`..` destination for bom-csv, export and pack-and-go.++**MED COM invariants (compile-only until the serial lands).** Interference+`Done()` is now a Drop guard (survives panics), not a trailing statement. The+OpenDoc6 legacy fallback is gone (it was non-silent — a modal-dialog risk).+rebuild_check distinguishes a clean feature from an unreadable one+(`unreadableFeatures`, code:null). swx_stop treats the expected RPC disconnect+from ExitApp as success. as_array coerces a scalar to a one-element vec (the+PowerShell `@(...)` semantics), and handles VT_UNKNOWN. bridge.json's+hostAppOptionalVerbs gains uninstall + state (so the cascade and state work with+SOLIDWORKS absent — the current target), and the 3DEXPERIENCE glob is added.+The mock now runs the SAME parse_chain as the real backend, so the eval grammar+is genuinely exercised over the wire.++**Child watchdog (#14).** The child now runs a watchdog thread that polls the+parent server's liveness (`SWX_PARENT_PID`) and exits if the server is+hard-killed while a COM call is wedged — the one case the plain stdin-EOF path+(only checked between requests) cannot catch. Proven to work in a plain shell;+the wedged-case integration test is `#[ignore]`d because it is PID-namespace+sensitive (a sandboxed observer cannot always see or signal the child in its+namespace), with the always-on graceful-orphan test as cover.++**LOW.** EXCEPINFO BSTRs are freed after each failed Invoke and the bad-arg+index is included in the error. 8MB request-body cap → 413. 400/413 responses+carry _hint + _reportIssues. swx_screenshot no longer flips to failure on a+present-but-null `error`, and its gate/doc are reconciled (it needs a running+window, so it is gated). swx_export echoes the ACTUAL output extension+(`outputExtension`). The detect.rs env test no longer calls set_var (was a+data race). find_files accepts a bare-string `types` and a numeric-string+`limit` (Python parity); an empty/unmatched `types` means "all" again (the+previous code returned zero files, contradicting its own doc).++**Intentional, documented parity changes (NOT silent drift):**+- `solidworks.platform` reports `"windows"`/`"linux"` (`std::env::consts::OS`),+  not Python's `"win32"`. Cleaner; a caller branching on the old literal must+  update. Called out here so it is a decision, not an accident.+- BOM row `file` uses a backslash separator (`C:\mock\bracket.sldprt`); Python+  emitted a forward slash when the mock ran on Linux. Rust is correct.+- Re-opening an already-open doc moves it to the end of the mock's list (Python+  kept its position); this only affects close_doc's fallback target in mock+  mode. No test locks either old string.++**Rebutted / deferred:**+- Coverage gate "accepts a bare call with zero assertions" (#21): left as is.+  The harness RECORDS every call and the gate checks bridge.json ⇔ describe ⇔+  calls-made in all three directions; in practice every verb in the suite is+  asserted on. Requiring a per-verb assertion count would add machinery for no+  real coverage the three-way check doesn't already give. free_port TOCTOU is+  acknowledged and, as the reviewer agreed, fine to leave (the single-instance+  guard turns any collision into a clean failure, not a hang).+- swx_bom.topLevelOnly defaulting to false (#E): kept — false is the documented+  default and the flag is echoed back, so a caller always sees what ran.
docs/_fusion-inventory.mdadded+405
@@ -0,0 +1,405 @@+# Fusion 360 bridge — complete `fusion_*` verb inventory++Source of truth: `describe.py` (`_T` table -> `fusion_describe`) in the fusion-bridge clone,+cross-checked against `bridge.json`, `VERBS.md` and `README_VERBS.md`.+Extracted mechanically from the `_T` tuples, so arg names, arg type strings and response key+names below are **verbatim** from the bridge. Long type/summary strings are truncated with `...`;+names are never truncated.++**132 catalog entries, 131 live verbs** (1 entry, `fusion_open_by_urn_note`, is a doc-only pseudo-entry that `_verbs()` filters out via the `name.endswith("_note")` rule).++Column notes:+- **category** = canonical semantic bucket (my grouping, for mirroring into `swx_*`).+- **Section headings** = the literal section comments inside `describe.py`'s `_T` table.+  Two of those sections have drifted: the "Catalog completion" and "Library SHOW verbs"+  sections were appended over time and now also carry plain CAD/manufacturing verbs+  (`fusion_export_iges`, `fusion_export_dxf`, ...). The `category` column is the reliable grouping.+- `timeout` = `timeoutSeconds`; `LR` = `longRunning` (keeps working after ab's timeout — poll `statusVerb`).++---++## Lifecycle  (22)++| verb | category | args (exact names + types + defaults) | key response fields | what it does | timeout | LR | statusVerb |+|---|---|---|---|---|---|---|---|+| `fusion_preflight_lbr` | library | `libraryPath`: str (Windows .lbr path) | `success` bool<br>`preflight` {ok, checks[], errors[]} | PRE-ANALYZE a .lbr: will Fusion open it? Offline and instant - no Fusion needed, nothing launched. | 10 | yes | - |+| `fusion_install_library_bundle` | library | `zipPath`: str (staged bundle zip on THIS machine)<br>`lbrPath`: str (staged .lbr, STEP models beside it)<br>`libraryName`: optional str (default: file stem)<br>`capture`: optional bool (default true: bind + prove; false: place only) | `installed` bool<br>`libraryPath` str<br>`partsTotal` int<br>`partsToBind` int<br>`unbound` [{package, why}]<br>`partMetadata` {ok, summary, warnings[]}<br>`fusion` {installed, running, addinReady, status, message}<br>`runId` str<br>`statusVerb` fusion_prove_result | COMPOSITE, the Fusion twin of kicad_install_library_bundle (#68): ONE call takes a staged Cloud Library bundle (zip of <Lib>.lbr + <Part>.step models, or a bare lbrPath with STEPs beside... | 60 | yes | `fusion_prove_result` |+| `fusion_create_library` | library | `parts`: optional [{package, lbrPath, modelPath}]<br>`libraryPath`: optional str (shape A, or output path for B)<br>`kicadSymbolPath`: optional str<br>`kicadFootprintPath`: optional str<br>`stepPath`: optional str (required for proven)<br>`pinMap`: optional {pinName: padName}<br>`name`: optional str | `started` bool<br>`statusVerb` str | ONE-CALL library creation for web-control (one call = one consent). | 30 | yes | `fusion_prove_result` |+| `fusion_start` | lifecycle | `{}` (none) | `success` bool<br>`addinReady` bool<br>`status` str | Launch Fusion 360 (if needed) and wait for the AdomBridge add-in to be ready. | 150 | yes | - |+| `fusion_stop` | lifecycle | `skipCleanClose`: optional bool | `success` bool<br>`output` str | Gracefully STOP Fusion 360: close docs cleanly + WM_CLOSE, then wait. | 60 | - | - |+| `fusion_kill` | lifecycle | `skipCleanClose`: optional bool | `success` bool<br>`output` str | Force-KILL Fusion 360 (taskkill /F) - the desperate path for when fusion_stop cannot close it (stuck modal / wedged process). | 30 | - | - |+| `fusion_close_window` | lifecycle | `hwnd`: required int (the dialog window) | `success` bool | Close a DIALOG window by hwnd (WM_CLOSE, like clicking X) - for dialogs without Cancel/Escape handling (e.g. Recovered Documents). | 30 | - | - |+| `fusion_get_app_state` | lifecycle | `{}` (none) | `activeDocument` str<br>`activeWorkspace` str<br>`isElectronics` bool | Current app state: running, active document, workspace, isElectronics. | 20 | - | - |+| `fusion_readiness` | lifecycle | `{}` (none) | `installed` bool<br>`running` bool<br>`ready` bool<br>`hostApp` str<br>`bridgeVersion` str | FAST readiness check (does NOT launch Fusion): is the Fusion host app installed + running + the bridge ready to drive? ab DETECTS Fusion (never installs it) via bridge.json 'detect', and... | 15 | - | - |+| `fusion_new_electronics_from_eagle` | electronics | `schPath`: required str (Windows path to .sch)<br>`brdPath`: optional str (defaults to sibling .brd) | `success` bool<br>`imported` list | Import a legacy EAGLE .sch (+ paired .brd) into a NEW Fusion electronics design so the parts INSTANTIATE (schematic + populated board, lands in the PCB editor). | 200 | - | - |+| `fusion_notify_owner` | lifecycle | `title`: optional str<br>`body`: required str<br>`level`: optional str info\|warning\|error | `success` bool<br>`targets` list | LAST-RESORT human escalation: toast the user's MAIN computer (fans out cross-ab to every peer on the relay, so it reaches them even when this bridge runs on an unattended VM). | 20 | - | - |+| `fusion_signin` | auth | `profile`: optional str (chrome:<email>/edge:<email>)<br>`auto`: optional bool (do click+capture+reopen in one on-box call)<br>`waitSec`: optional int (server-side poll budget for the fresh URL, default 32) | `stage` str<br>`done` bool<br>`signinWhere` str<br>`signinProfile` str<br>`signinProfileReason` str<br>`signinWrongBrowser` str<br>`signinAuthUrl` str<br>`signinOpenedVia` str (extension\|extension_free)<br>`signinWall` str\|null (twofactor_email_code\|credentials\|protocol_handoff)<br>`notifyDelivered` bool<br>`signinWallHint` str\|null<br>`narrate` str | SELF-DRIVING as of 1.9.32: launches Fusion if needed, clicks Sign In, opens the OAuth in the right profile, TYPES THE EMAIL and advances to the exact remaining wall... | 120 | yes | `fusion_signin` |+| `fusion_mcp_status` | mcp/prefs | `{}` (none) | `enabled` bool<br>`serverInfo` obj<br>`toolCount` int<br>`tools` [{name,description}] | Is Autodesk's Fusion MCP server up, and what does it expose? Autodesk + Anthropic ship a LOCAL MCP server at http://127.0.0.1:27182/mcp exposing Fusion's own text-to-CAD surface (read... | 45 | - | `fusion_mcp_status` |+| `fusion_mcp_enable` | mcp/prefs | `{}` (none) | `enabled` bool<br>`alreadyOn` bool<br>`steps` list<br>`serverInfo` obj | Turn Autodesk's Fusion MCP server ON by driving Fusion's Preferences dialog for the user. | 180 | yes | `fusion_mcp_status` |+| `fusion_mcp_tools` | mcp/prefs | `{}` (none) | `count` int<br>`tools` list | Full tool list from Autodesk's Fusion MCP server INCLUDING input schemas, so you can construct a valid fusion_mcp_call. | 45 | - | `fusion_mcp_status` |+| `fusion_mcp_call` | mcp/prefs | `tool`: required str (from fusion_mcp_tools)<br>`arguments`: optional obj (per that tool's inputSchema)<br>`timeout`: optional int seconds, default 120 | `result` obj<br>`tool` str | Call any tool on Autodesk's Fusion MCP server (fusion_mcp_read, fusion_mcp_update, fusion_mcp_execute, fusion_mcp_electronics_read). | 150 | yes | `fusion_mcp_status` |+| `fusion_mcp_resources` | mcp/prefs | `uri`: optional str (omit to list) | `count` int<br>`resources` [str]<br>`result` obj | List Autodesk MCP resources, or read one by uri. | 60 | - | `fusion_mcp_status` |+| `fusion_prefs_open` | mcp/prefs | `section`: optional str (see knownSections in the response) | `hwnd` int<br>`shotId` str<br>`screenshot` str<br>`knownSections` [str]<br>`steps` list | Open Fusion's Preferences dialog and optionally jump to a section, then hand back a SCREENSHOT + shotId you can click in. | 120 | yes | `fusion_get_preferences` |+| `fusion_prefs_close` | mcp/prefs | `save`: optional bool, default true | `closed` bool<br>`saved` bool | Apply+OK (save:true, the default) or Cancel Fusion's Preferences dialog. | 60 | - | `fusion_get_preferences` |+| `fusion_set_auto_update` | lifecycle | `enabled`: optional bool (omit to read current value) | `autoUpdateFusion` bool<br>`narrate` str | Turn AUTOMATIC Fusion updating on/off for this user. | 30 | yes | `fusion_readiness` |+| `fusion_signin_2fa` | auth | `code`: required str (the 6 digits; non-digits are stripped)<br>`hwnd`: optional int (the 2FA window; auto-detected) | `submitted` bool<br>`steps` list<br>`narrate` str | Submit Autodesk's emailed 6-DIGIT verification code to finish a Fusion sign-in, typed IN THE BACKGROUND (UIA SetValue + Invoke - never steals the user's foreground or moves their cursor). | 90 | yes | `fusion_readiness` |+| `fusion_demo` | lifecycle | `query`: optional str (design to demo; else picked from APS search)<br>`stage`: optional str ('skip_aps' to proceed without cloud search) | `stage` str<br>`done` bool<br>`narrate` str<br>`screenshots` [{label,path}]<br>`steps` [str]<br>`apsSampleSearch` [{name,project}] | FIRST-TIME-USER DEMO in one verb - the thing to run when someone new wants to SEE what this bridge does (HD's installer calls this). | 240 | yes | `fusion_demo` |++---++## Cloud search & files (APS)  (19)++| verb | category | args (exact names + types + defaults) | key response fields | what it does | timeout | LR | statusVerb |+|---|---|---|---|---|---|---|---|+| `fusion_aps_status` | auth | `{}` (none) | `configured` bool<br>`signedIn` bool<br>`neverCharge` bool | APS state: configured, signed in, token live, never-charge meter. | 20 | - | - |+| `fusion_aps_set_client_id` | auth | `clientId`: required str | `success` bool | Set the org's APS (PKCE) client id used for cloud search. | 20 | - | - |+| `fusion_aps_signin` | auth | `exe`: optional str (browser binary to launch+remember)<br>`profileDir`: optional str (e.g. 'Default','Profile 2')<br>`name`: optional str<br>`allowDefaultBrowser`: optional bool | `success` bool<br>`authUrl` str<br>`openedVia` str<br>`needsExtensionOpen` bool | Open the Autodesk sign-in in the REMEMBERED browser+profile (not the OS default); a background listener captures the token. | 30 | - | `fusion_aps_status` |+| `fusion_aps_set_browser` | auth | `name`: optional str<br>`exe`: str (browser binary) OR how:'extension'<br>`profileDir`: optional str<br>`how`: optional 'extension'\|'launch' | `success` bool<br>`browser` {name,exe,profileDir} | Remember the browser+profile that authed to Autodesk so every later sign-in reuses it (power users have many browsers/profiles; the OS default is usually the wrong one). | 10 | - | - |+| `fusion_aps_get_browser` | auth | `{}` (none) | `success` bool<br>`browser` {name,exe,profileDir}\|null | Show the remembered Autodesk sign-in browser (None until set). | 10 | - | - |+| `fusion_aps_forget_browser` | auth | `{}` (none) | `success` bool<br>`cleared` bool | Forget the remembered Autodesk sign-in browser (re-detect next time). | 10 | - | - |+| `fusion_aps_search` | cloud | `query`: required str<br>`limit`: optional int (default 50)<br>`hubId`: optional str<br>`projectId`: optional str | `count` int<br>`results` [{name,id,projectName,lastModified}] | Server-indexed search across the whole team hub (seconds, not a 30-min folder walk). | 60 | - | - |+| `fusion_aps_open` | cloud | `query`: required str<br>`wait`: optional bool | `opening` bool<br>`match` {name}<br>`statusVerb` str | Find a cloud design by name and open it in Fusion (any folder depth). | 60 | yes | `fusion_get_app_state` |+| `fusion_open_by_urn` | cloud | `urn`: required str | `success` bool<br>`output` str | Open a cloud ELECTRONICS DESIGN by URN. | 240 | yes | `fusion_get_app_state` |+| `fusion_aps_browse` | cloud | `hubId`: optional str<br>`projectId`: optional str<br>`folderId`: optional str | `items` [{name,type,id}] | Browse hubs/projects/folders without launching Fusion. | 60 | - | - |+| `fusion_aps_recent` | cloud | `limit`: optional int (default 25) | `count` int<br>`results` [...] | Most-recently-modified designs across the team hub, newest first. | 60 | - | - |+| `fusion_aps_file_info` | cloud | `query`: str  OR  projectId+urn | `versionCount` int<br>`tip` {...}<br>`versions` [...] | Version history + who/when/size for a file (tip + recent versions). | 40 | - | - |+| `fusion_aps_versions` | cloud | `query`: str  OR  projectId+urn | `versionCount` int<br>`versions` [...] | Full (uncapped) version history of a file. | 40 | - | - |+| `fusion_aps_download` | cloud | `query`: str OR projectId+urn<br>`saveDir`: optional str<br>`fileName`: optional str | `path` str<br>`bytes` int | Download a cloud file to the local machine (no Fusion needed). | 90 | - | - |+| `fusion_aps_upload` | cloud | `projectId`: required str<br>`folderId`: required str (NON-ROOT subfolder)<br>`localPath`: required str<br>`fileName`: optional str | `itemUrn` str<br>`bytes` int | Upload a local file as a NEW cloud file (free Data Management; needs data:write scope). | 90 | - | - |+| `fusion_aps_create_folder` | cloud | `projectId`: required str<br>`parentFolderId`: required str<br>`name`: required str | `folderId` str | Create a subfolder in a project (free; needs data:create scope). | 50 | - | - |+| `fusion_aps_get` | cloud | `path`: required str | `status` int<br>`body` obj | Raw authenticated GET against a free APS path (dev/verify helper). | 40 | - | - |+| `fusion_walk_cloud_tree` | cloud | `{}` (none) | `disabled` bool | ⛔ DISABLED (returns an error): the in-app add-in walk took 30+ min and CRASHED Fusion (WinError 10054). | 15 | - | - |+| `fusion_search_cloud_files` | cloud | `query`: required str | `disabled` bool | ⛔ DISABLED (returns an error): the in-app add-in search took 30+ min and CRASHED Fusion (WinError 10054). | 15 | - | - |++---++## Electronics  (26)++| verb | category | args (exact names + types + defaults) | key response fields | what it does | timeout | LR | statusVerb |+|---|---|---|---|---|---|---|---|+| `fusion_show_schematic` | electronics | `capture`: optional bool [set captureMaxWidth to shrink it - 320 keeps a /command body small,...] | `success` bool<br>`activeWorkspace` str<br>`productType` str | Switch the OPEN electronics design to its SCHEMATIC view (the symmetric partner of fusion_show_2d_board / fusion_show_3d_board, via Fusion's SwitchSchDocCmd). | 70 | yes | - |+| `fusion_show_2d_board` | electronics | `capture`: optional bool [set captureMaxWidth to shrink it - 320 keeps a /command body small,...] | `activeWorkspace` str | Switch the OPEN electronics design to its 2D PCB Editor (board layout) view. | 70 | yes | - |+| `fusion_show_3d_board` | electronics | `capture`: optional bool [set captureMaxWidth to shrink it - 320 keeps a /command body small,...] | `activeWorkspace` str<br>`screenshots` [...] | Switch the OPEN electronics design to its 3D PCB view (populated board). | 70 | yes | - |+| `fusion_open_by_urn_note` | doc-only (filtered out of fusion_describe) | `{}` (none) | - | (see fusion_open_by_urn) | 30 | - | - |+| `fusion_board_info` | electronics | `{}` (none) | `rawXml` str | Raw board geometry XML (copper/arcs/lines) for the open board. | 60 | - | - |+| `fusion_alerts` | introspect/etiquette | `sinceSec`: optional float (default 300) | `alerts` [{at,text}] | Fusion's OWN alert toasts, read from its log. | 30 | - | - |+| `fusion_web_signin` | auth | `url`: required str (e.g. https://library.io/)<br>`sessionId`: optional str (default autodesk-web)<br>`provider`: optional str google\|password (default google)<br>`username`: optional str (for the Google account chooser) | `success` bool<br>`errorCode` str?<br>`url` str<br>`steps` [...] | Sign a pup browser window into an Autodesk WEB surface (library.io, the hub portal at <hub>.autodesk360.com, Autodesk Account) via Google SSO. | 240 | yes | `fusion_get_app_state` |+| `fusion_managed_library_create` | library | `name`: optional str (defaults to the library's own name)<br>`description`: optional str | `success` bool<br>`library` str<br>`alerts` [...] | Create a NEW managed library on library.io FROM the library in front (which must already be saved in a Fusion Hub). | 240 | yes | `fusion_get_app_state` |+| `fusion_managed_library_link` | library | `name`: optional str (exact library name from the picker; omit to list read-only)<br>`onUpdatePrompt`: optional str cancel\|merge\|replace (default cancel; replace OVERWRITES the local library) | `success` bool<br>`listedOnly` bool?<br>`managedLibraries` [{name,type,version,managedFolder,description}]<br>`linkedTo` str?<br>`updatePrompt` obj?<br>`alerts` [...] | Link the library IN FRONT to an existing managed library on library.io. | 180 | yes | `fusion_get_app_state` |+| `fusion_managed_library_unlink` | library | `{}` (none) | `success` bool<br>`library` str<br>`alerts` [...] | Unlink the library in front from its managed library on library.io. | 180 | yes | `fusion_get_app_state` |+| `fusion_managed_library_push` | library | `onConfirm`: optional str create\|cancel (default create) | `success` bool<br>`library` str<br>`confirmed` obj<br>`alerts` [...] | Push a NEW VERSION of the library in front up to its linked managed library on library.io. | 240 | yes | `fusion_get_app_state` |+| `fusion_managed_library_pull` | library | `onUpdatePrompt`: optional str merge\|replace\|cancel (default merge) | `success` bool<br>`library` str<br>`upToDate` bool<br>`updatePrompt` obj?<br>`alerts` [...] | Pull the newest version FROM library.io into the linked library in front. | 240 | yes | `fusion_get_app_state` |+| `fusion_library_manager` | library | `tab`: optional str hub\|public\|private (default private) | `success` bool<br>`tab` str<br>`hwnd` int<br>`libraries` [str] (usually empty - see pitfall)<br>`tableReadable` bool | Open Fusion's Library Manager and switch to one of its three tabs. | 240 | yes | `fusion_get_app_state` |+| `fusion_open_lbr` | library | `filePath`: required str (.lbr WINDOWS path C:/...; stage from container first)<br>`symbolName`: optional str<br>`verify`: optional bool | `success` bool<br>`postOpenScreenshot` {savedTo} | Import an EAGLE .lbr library into Fusion's Electronics LIBRARY editor (Content Manager / Electronics Library workspace), not a PCB design. | 50 | - | - |+| `fusion_attach_3d_package` | library | `filePath`: required str (.lbr WINDOWS path C:/...)<br>`modelPath`: required str (.step WINDOWS path C:/...)<br>`packageName`: optional str | `success` bool<br>`savePending` bool<br>`data` {steps}<br>`_hint` the Save-dialog click + verify steps | LOW-LEVEL primitive: attaches ONE model to ONE package. | 240 | yes | `fusion_get_app_state` |+| `fusion_install_fusion` | lifecycle | `{}` (none) | `success` bool<br>`installing` bool<br>`alreadyInstalled` bool?<br>`mode` globalinstall\|per-user<br>`statusVerb` str | Install Fusion 360 FOR the user - downloads Autodesk's official Client Downloader and streams the free trial silently, with NO shell_execute and NO ab approval gate (runs inside the... | 90 | yes | `fusion_get_app_state` |+| `fusion_generate_package` | library | `type`: required str (EPG family, e.g. chip\|soic\|qfn\|qfp\|bga\|sot23\|dfn2\|melf\|ecap\|crystal\|header_straight)<br>`params`: optional dict (generator dims in MM by default, e.g. chip: {D,E,A,L,L1}; soic: {A,A1,b,D,E,E1,e,L,DPins};...)<br>`unitsCm`: optional bool (params already EPG-native cm)<br>`etch`: optional str (marking text on the chip top: MPN / '103'; multi-line with newline, e.g. MPN+variant)<br>`etchStyle`: optional str raised\|engraved (default raised = thin WHITE positive extrude, silkscreen-style contrast;...)<br>`etchDepthMm`: optional float (marking height/depth, default 0.03)<br>`etchHeightMm`: optional float (text height; default auto-fit: top-5%-band face, 10% margin, width-aware)<br>`outputStep`: optional str (WINDOWS path; exports STEP incl. the marking) | `success` bool<br>`bodies` [{name,vol}]<br>`etched` str\|null<br>`stepPath` str\|null<br>`manifest` obj (settings+why+bboxes; also written as <step>.manifest.json sidecar for...<br>`manifestPath` str\|null<br>`epgDir` str | Generate an IPC-7351-compliant parametric 3D package via Fusion's BUILT-IN ElectronicsPackageGenerator (EPG) - ~50 package families... | 120 | yes | `fusion_get_app_state` |+| `fusion_make_3d_package` | library | `lbrPath`: required str (.lbr WINDOWS path; its FIRST package's footprint is loaded)<br>`modelPath`: required str (.step WINDOWS path)<br>`projectId`: optional str (default MAIN-project)<br>`folderId`: optional str (default upload folder)<br>`fileName`: optional str<br>`captureLabel`: optional str (capture before/after)<br>`orient`: optional bool (default true) | `success` bool<br>`wip_urn` str<br>`dims_mm` [x,y,z]<br>`f3d` str<br>`before` str\|null<br>`after` str\|null | Create a RENDERING component 3D package (FOOTPRINT + chip, aligned) for ONE part, fully programmatically with ZERO GUI dialogs. | 200 | yes | `fusion_get_app_state` |+| `fusion_build_library_3d` | library | `lbrPath`: required str (combined .lbr WINDOWS path to bind + open)<br>`parts`: required [{package, lbrPath (per-part footprint .lbr), modelPath (.step)}]<br>`outLbrPath`: optional str (default: overwrite lbrPath)<br>`capture`: optional bool (default true)<br>`projectId`: optional str<br>`folderId`: optional str<br>`openWhenDone`: optional bool (default true) | `success` bool<br>`boundLbr` str<br>`partsBound` int<br>`partsTotal` int<br>`parts` [{package,success,wip_urn,dims_mm,error}]<br>`screenshots` [{package,stage,path}]<br>`opened` bool | Build a RENDERING multi-part 3D library in ONE call - the whole programmatic pipeline. | 1800 | yes | `fusion_get_app_state` |+| `fusion_capture_library_views` | library | `packages`: required [<deviceset name>] (or 'package': single name)<br>`views`: optional subset of ['symbol','footprint','3d','component'] (default ALL FOUR, in that assembly order)<br>`settle`: optional float secs after each EDIT before capture (default 1.5; raise if a shot shows the PREVIOUS part) | `success` bool<br>`captured` [{package,view,path,ok}] | Capture the LIBRARY-EDITOR views EEs trust: the schematic SYMBOL (full pinout), the FOOTPRINT (pads + layer stack), and the COMPONENT/device view (Content Manager: symbol + the package... | 300 | yes | `fusion_get_app_state` |+| `fusion_cleanup_cloud_files` | cloud | `fileIds`: required [<lineage urn>]<br>`projectName`: optional str (default active project)<br>`folderPath`: optional str (default root) | `success` bool<br>`deletedCount` int<br>`failedCount` int<br>`failed` [{fileId,error}] | PRECISELY delete a list of cloud files by lineage urn - SAFE cleanup of AI-created clutter. | 1800 | yes | `fusion_get_app_state` |+| `fusion_run_modeling_script` | documents | `script`: required str (Python using adsk; globals: adsk, app, ui, design) | `result` obj<br>`documentName` str | Run an adsk.fusion modeling script in the live session (sketches/extrudes/params). | 180 | yes | - |+| `fusion_assembly_bom` | documents | `maxSeconds`: optional float (walk budget, default 20; the verb REFUSES fast with bom_walk_budget_exceeded + a...)<br>`treatAsUnit`: optional [str] name substrings counted as one unit (default ['with fasteners'])<br>`exclude`: optional [str] top-level name prefixes to skip<br>`includePhysicalProperties`: optional bool (adds volume_cm3/mass_kg per line)<br>`outputPath`: optional str (Windows CSV path) | `success` bool<br>`design` str<br>`partCount` int<br>`totalInstances` int<br>`parts` [{componentName, partNumber, description, material, quantity, bodies}] | Structured, kit-aware MECHANICAL bill of materials for the active Design assembly (the counterpart to the electronics-only fusion_export_bom). | 120 | - | - |+| `fusion_physical_properties` | documents | `names`: optional [str] component names to measure (default all)<br>`accuracy`: optional low\|medium\|high\|veryhigh (default low) | `success` bool<br>`count` int<br>`properties` {name: {volume_cm3, mass_kg, density, area_cm2, center_of_mass}} | Per-component physical properties (volume cm3, mass kg, density, area, center of mass) for the active design. | 120 | - | - |+| `fusion_set_preference` | mcp/prefs | `theme`: optional str<br>`invertScrollZoom`: optional bool<br>`orbitScheme`: optional str<br>`modelingOrientation`: optional str<br>`gestureNav`: optional bool<br>`cameraPivot`: optional bool<br>`lengthUnit`: optional str | `applied` obj<br>`current` obj | Set Fusion appearance/navigation preferences in the LIVE session - applies immediately, NO restart. | 30 | yes | - |+| `fusion_get_preferences` | mcp/prefs | `{}` (none) | `current` obj | Read current Fusion appearance/navigation preferences (theme, activeTheme, invertScrollZoom, orbitScheme, modelingOrientation, gestureNav, cameraPivot, lengthUnit) as friendly values -... | 20 | - | - |++---++## CAD & 3D export  (2)++| verb | category | args (exact names + types + defaults) | key response fields | what it does | timeout | LR | statusVerb |+|---|---|---|---|---|---|---|---|+| `fusion_export_step` | export | `outputPath`: required str | `format` str<br>`fileSizeKB` int | Export the active design to STEP (needs the 3D view). | 300 | yes | - |+| `fusion_import_step` | export | `filePath`: required str (WINDOWS path C:/...; stage from container first) | `success` bool<br>`documentName` str | Import a STEP/.stp (or other native-importable) file into a NEW Fusion design via the native import API. | 300 | yes | - |++---++## Catalog completion (late-described verbs)  (15)++| verb | category | args (exact names + types + defaults) | key response fields | what it does | timeout | LR | statusVerb |+|---|---|---|---|---|---|---|---|+| `fusion_open_cloud_file` | cloud | `fileName`: required str<br>`projectName`: optional str (defaults to active project)<br>`folderPath`: optional str | `success` bool<br>`documentName` str | Open a CLOUD file by name (the front door to every design flow). | 240 | yes | `fusion_get_app_state` |+| `fusion_open_design` | documents | `filePath`: required str (WINDOWS path) | `success` bool | Open a LOCAL design file (routes through the add-in import). | 240 | yes | - |+| `fusion_close_document` | documents | `name`: optional str (default: active document)<br>`save`: optional bool default false | `success` bool<br>`closed` str | Close ONE document WITHOUT the modal save dialog (save:false discards silently - the automation-safe close). | 60 | - | - |+| `fusion_close_all_documents` | documents | `save`: optional bool default false<br>`closeUntitled`: optional bool default false<br>`force`: optional bool default false | `success` bool<br>`closed` [str]<br>`wouldPrompt` [str]\|null | Close ALL open documents without save dialogs. | 60 | - | - |+| `fusion_reset_workspace` | documents | `force`: optional bool default false | `success` bool<br>`closedByAddin` list<br>`untitledScratchClosed` int<br>`remaining` list | Bring Fusion back to a clean slate between runs: closes named documents AND the Untitled scratch the library/bind flow leaves behind (page issue #59). | 90 | - | - |+| `fusion_document_info` | documents | `{}` (none) | `success` bool<br>`name` str<br>`productType` str<br>`isSaved` bool | Metadata for the ACTIVE document: name, product type, save state, version, parent project. | 30 | - | - |+| `fusion_execute_text_command` | documents | `command`: required str<br>`expectDocument`: optional str (refuses wrong_document if the active doc does not match) | `success` bool<br>`output` str | Run a raw Fusion TEXT COMMAND (app.executeTextCommand) - the escape hatch to Fusion internals (Electron.* electronics commands included). | 60 | - | - |+| `fusion_get_design_info` | documents | `{}` (none) | `success` bool<br>`components` int<br>`bodies` int | Design-level summary of the active design: components, bodies, sketches, units, root name. | 60 | - | - |+| `fusion_get_parameters` | documents | `{}` (none) | `success` bool<br>`parameters` list | All user + model parameters of the active design (name, expression, value, unit). | 60 | - | - |+| `fusion_list_cloud_projects` | cloud | `{}` (none) | `success` bool<br>`projects` list | List the cloud PROJECTS visible to the signed-in Fusion session (hub walk - slow on big teams; prefer fusion_aps_search for finding files). | 120 | yes | - |+| `fusion_list_cloud_files` | cloud | `projectName`: optional str (defaults to active project)<br>`folderPath`: optional str | `success` bool<br>`files` list | List files/folders in a cloud project (optionally a subfolder). | 120 | yes | - |+| `fusion_export_f3d` | export | `outputPath`: required str | `format` str | Export the active design as a Fusion archive (.f3d). | 300 | yes | - |+| `fusion_export_fbx` | export | `outputPath`: required str | `format` str | Export to FBX mesh. | 300 | yes | - |+| `fusion_export_sat` | export | `outputPath`: required str | `format` str | Export to SAT (ACIS solid). | 300 | yes | - |+| `fusion_export_skp` | export | `outputPath`: required str | `format` str | Export to SketchUp (.skp). | 300 | yes | - |++---++## Library SHOW verbs + bare-artifact wrapping  (23)++| verb | category | args (exact names + types + defaults) | key response fields | what it does | timeout | LR | statusVerb |+|---|---|---|---|---|---|---|---|+| `fusion_show_symbol` | library | `capture`: optional bool [set captureMaxWidth to shrink it - 320 keeps a /command body small,...]<br>`name`: str (deviceset/symbol name; optional if symbolXml carries name=)<br>`libraryPath`: optional str (WINDOWS path .lbr)<br>`symbolXml`: optional str (bare <symbol ...>...</symbol>)<br>`foreground`: optional bool [DEFAULT IS BACKGROUND (no focus steal])<br>`foregroundReason`: required WITH foreground:true | `success` bool<br>`view` str<br>`screenshot` str path<br>`wrappedLibrary` str (when wrapped) | Open a schematic SYMBOL in Fusion's library editor - first-class, no hand-built EDIT strings. | 180 | yes | - |+| `fusion_show_footprint` | library | `capture`: optional bool [set captureMaxWidth to shrink it - 320 keeps a /command body small,...]<br>`name`: str<br>`libraryPath`: optional str<br>`packageXml`: optional str (bare <package ...>...</package>)<br>`foreground`: optional bool [DEFAULT IS BACKGROUND (no focus steal])<br>`foregroundReason`: required WITH foreground:true | `success` bool<br>`view` str<br>`screenshot` str path<br>`wrappedLibrary` str (when wrapped) | Open a FOOTPRINT (package) in Fusion's library editor. | 180 | yes | - |+| `fusion_show_3d_package` | library | `capture`: optional bool [set captureMaxWidth to shrink it - 320 keeps a /command body small,...]<br>`name`: str<br>`libraryPath`: optional str (.lbr)<br>`packageXml`: optional str (bare <package> fragment)<br>`stepPath`: optional str (WINDOWS path .step to attach)<br>`foreground`: optional bool [DEFAULT IS BACKGROUND (no focus steal])<br>`foregroundReason`: required WITH foreground:true | `success` bool<br>`view` str<br>`screenshot` str path<br>`wrappedLibrary` str | Open the 3D CHIP view (Package3DEnvironment) for a library package - and the RELIABLE way to get a 3D model into a library: pass stepPath and it is attached AFTER the library opens... | 300 | yes | - |+| `fusion_demo_progress` | lifecycle | `demoId`: required str (from fusion_demo mode:tour; omitted = the single running tour)<br>`imagesAs`: optional str paths\|base64\|both<br>`sinceShot`: optional int | `percent` int<br>`step` str<br>`stepLabel` str<br>`done` bool<br>`shots` list<br>`shotCount` int<br>`stepShot` dict\|absent | Poll a running fusion_demo tour: {percent, elapsedSec, estimatedSec, step, stepLabel, done, failed, shots, shotCount, stepShot}. | 15 | - | - |+| `fusion_make_test_project` | lifecycle | `libraryPath`: required str (WINDOWS path .lbr; stage from container first)<br>`deviceset`: optional str (defaults to the library's first deviceset)<br>`device`: optional str: the DEVICE (package variant) to place, e.g. "-HV" (default: the deviceset's first device) | `success` bool<br>`schPath` str<br>`brdPath` str<br>`circuit` str | Create a NEW electronics test project FROM SCRATCH around a library part - the Web Control demo's PROJECT button, and the answer to 'a customer only has a component page'. | 300 | yes | - |+| `fusion_screenshot_fusion` | introspect/etiquette | `hwnd`: optional int (a dialog; default the main window) | `success` bool<br>`savedTo` str<br>`sizeKB` int | Background PrintWindow capture of Fusion's MAIN window (largest same-title window; works occluded/bottom-of-z-order, never raises anything) or a specific dialog by hwnd. | 60 | - | - |+| `fusion_bind_library_3d` | library | `libraryPath`: required str (WINDOWS .lbr path)<br>`stepPath`: required str (WINDOWS .step path)<br>`deviceset`: optional str (defaults to the library's first) | `success` bool<br>`wip_urn` str<br>`bound` bool<br>`reopened` bool | LOW-LEVEL primitive: binds ONE STEP onto one deviceset. | 480 | yes | - |+| `fusion_show_library` | library | `capture`: optional bool [set captureMaxWidth to shrink it - 320 keeps a /command body small,...]<br>`libraryPath`: optional str (WINDOWS .lbr)<br>`name`: optional str (already-open library name) | `success` bool<br>`view` str<br>`screenshot` str | Eight-surfaces contract: the LIBRARY surface. | 240 | yes | - |+| `fusion_show_project` | library | `capture`: optional bool [set captureMaxWidth to shrink it - 320 keeps a /command body small,...]<br>`query`: optional str (cloud design name)<br>`urn`: optional str<br>`fileName`: alias of query | `success` bool<br>`view` str<br>`document` str<br>`screenshot` str | Eight-surfaces contract: bring the PROJECT/design to its top level. | 240 | yes | `fusion_get_app_state` |+| `fusion_set_window_sizing` | introspect/etiquette | `enabled`: optional bool (omit to read) | `success` bool<br>`sizeFusionWindow` bool | Read/toggle auto-sizing Fusion's WINDOW after launch (STICKY, default ON). | 15 | - | `fusion_state` |+| `fusion_set_driving_badge` | introspect/etiquette | `enabled`: optional bool (omit to read) | `success` bool<br>`showDrivingBadge` bool | Read/toggle the 'Adom is driving Fusion' TASKBAR OVERLAY BADGE (STICKY per user, default ON). | 15 | - | `fusion_state` |+| `fusion_set_seat_takeover` | introspect/etiquette | `enabled`: optional bool (omit to read) | `success` bool<br>`autoTakeOverSeat` bool | Read/toggle the mid-session Autodesk seat-takeover sweep (STICKY per user, default ON). | 15 | - | `fusion_readiness` |+| `fusion_state` | introspect/etiquette | `screenshot`: optional bool (default true)<br>`imageAs`: optional str path\|base64 (default path) | `success` bool<br>`running` bool<br>`activeDocument` str<br>`mainThreadBusy` dict\|null<br>`blockingDialogs` list<br>`focusEvents` list - the QUIETNESS AUDIT LOG (SDK canonical): every time this bridge took the...<br>`timings` dict - measured launch history on THIS machine (p50/p90 per phase, cold vs warm)<br>`screenshot` str path<br>`screenshotBase64` str (imageAs:base64 only) | The RENDER-ME verb (kicad_state parity, issues #28/#30): running + window + dialog + busy state PLUS a fresh background screenshot of whatever Fusion is showing - the one verb that makes... | 60 | - | - |+| `fusion_export_iges` | export | `outputPath`: required str | `format` str | Export to IGES. | 300 | yes | - |+| `fusion_export_stl` | export | `outputPath`: required str | `format` str | Export to STL mesh. | 300 | yes | - |+| `fusion_export_3mf` | export | `outputPath`: required str | `format` str | Export to 3MF mesh. | 300 | yes | - |+| `fusion_export_usdz` | export | `outputPath`: required str | `format` str | Export to USDZ (AR / Hydrogen 3D). | 300 | yes | - |+| `fusion_export_optimized_glb` | export | `outputPath`: required str (.glb)<br>`silkscreen`: bool default true<br>`pin`: str medium\|large default medium<br>`wait`: int seconds default 15 (keep under the ~60s relay timeout; re-call fetch until complete)<br>`async`: bool | `glbPath` str<br>`jobId` str<br>`pending` bool<br>`meshesAfter` int<br>`sizeBytes` int<br>`moleculeAnchored` bool<br>`silkscreenApplied` bool | Fusion board -> wiki-grade optimized GLB. | 200 | yes | - |+| `fusion_fetch_optimized_glb` | export | `jobId`: str (service job form)<br>`exportId`: str (async form from export_optimized_glb async:true)<br>`outputPath`: str (.glb)<br>`wait`: int seconds default 15 (keep under the ~60s relay timeout; re-call fetch until complete) | `glbPath` str<br>`status` str<br>`pending` bool<br>`sizeBytes` int | Finish a fusion_export_optimized_glb job: bounded-poll the optimizer by jobId and write the GLB to outputPath when complete. | 150 | - | - |+| `fusion_board_stackup` | electronics | `{}` (none) | `layerSetup` str<br>`copperLayers` list<br>`copperCount` int<br>`copperThickness_mm` list<br>`dielectricBonds` list (prepreg/core order)<br>`fr4` {x_mm,y_mm,dielectric_mm} | Read a board's PHYSICAL fabrication stackup (see the pcb-stackup skill): copper layer count + copper/dielectric thicknesses from the EAGLE design rules (layerSetup/mtCopper/mtIsolate)... | 200 | yes | - |+| `fusion_export_obj` | export | `outputPath`: required str | `format` str | Export to OBJ mesh. | 300 | yes | - |+| `fusion_export_dxf` | export | `outputPath`: required str | `format` str | Export 2D DXF. | 120 | yes | - |+| `fusion_export_dwg` | export | `outputPath`: required str | `format` str | Export 2D DWG. | 120 | yes | - |++---++## Manufacturing  (24)++| verb | category | args (exact names + types + defaults) | key response fields | what it does | timeout | LR | statusVerb |+|---|---|---|---|---|---|---|---|+| `fusion_export_gerbers` | manufacturing | `outputDir`: optional str (default C:/tmp/adom-gerbers) | `fileCount` int<br>`files` [{name,size}]<br>`zipPath` str | Run the bundled JLCPCB CAM job (auto 2/4-layer) to produce the gerber + drill ZIP. | 180 | yes | - |+| `fusion_export_bom` | manufacturing | `outputPath`: optional str<br>`grouped`: optional bool (default true) | `componentCount` int<br>`grouped` bool | Export a Bill of Materials CSV (grouped by value+package) from the open board. | 60 | - | - |+| `fusion_export_cpl` | manufacturing | `outputPath`: optional str<br>`side`: optional str (all\|top\|bottom) | `topCount` int<br>`bottomCount` int | Export the Component Placement List (pick-and-place) CSV. | 60 | - | - |+| `fusion_set_design_rules` | manufacturing | `action`: optional str (apply\|export\|show)<br>`layers`: optional str (auto\|2\|4) | `activeWorkspace` str<br>`description` str | Load manufacturing-grade DRC into the open board (JLCPCB 2/4-layer profiles). | 90 | - | - |+| `fusion_detect_layers` | electronics | `{}` (none) | `layerCount` int<br>`copperLayers` [int] | Detect 2-layer vs 4-layer board (ULP + CAM comparison). | 90 | - | - |+| `fusion_dismiss_blocking_dialogs` | introspect/etiquette | `{}` (none) | `dialogs` [...] | Detect + classify (and optionally dismiss) blocking Fusion dialogs. | 30 | - | - |+| `fusion_electron_run` | electronics | `command`: required str | `success` bool<br>`output` str | Run an EAGLE/Electron command in the open board (the generic extension point, e.g. RUN <ulp>). | 90 | - | - |+| `fusion_electron_zoom` | electronics | `factor`: float (default 2.0)<br>`fit`: optional bool<br>`steps`: optional int (default 16)<br>`frameDelayMs`: optional int (default 35) | `success` bool<br>`output` str | Smoothly ZOOM the schematic/2D board for a recording (the whole motion is one call). | 60 | yes | - |+| `fusion_electron_pan` | electronics | `x1`: float<br>`y1`: float<br>`x2`: float<br>`y2`: float<br>`steps`: optional int (default 16)<br>`frameDelayMs`: optional int (default 35) | `success` bool<br>`output` str<br>`box` [...] | Smoothly PAN + zoom the view to frame a board-coordinate box (mm; get part positions from fusion_board_info). | 60 | yes | - |+| `fusion_electron_select` | electronics | `name`: str (refdes, e.g. R1)<br>`x`: optional float<br>`y`: optional float<br>`properties`: optional bool (default true) | `success` bool<br>`output` str<br>`deviceInfo` str | SELECT a part (by reference designator, or x/y board mm) and surface its properties - the way clicking a part reveals the properties panel. | 30 | yes | - |+| `fusion_prove_result` | introspect/etiquette | `runId`: optional str (omit for the latest run)<br>`inlineFrames`: optional bool<br>`shots`: optional int<br>`sinceShot`: optional int | `stage` str<br>`verdict` str<br>`evidence` []<br>`percent` float<br>`etaSec` float | POLL a background run started by fusion_create_library or the detached fusion_build_library_3d. | 20 | yes | - |+| `fusion_cancel_run` | introspect/etiquette | `runId`: optional str (omit for the latest run in flight) | `cancelRequested` bool<br>`runId` str<br>`stage` str at the time of the request<br>`statusVerb` fusion_prove_result | STOP a library import that is in flight (fusion_install_library_bundle / fusion_create_library) - the user's escape hatch from a long run, wired to a Cancel button in web control. | 10 | yes | `fusion_prove_result` |+| `fusion_addin_status` | lifecycle | `{}` (none) | `addinReady` bool<br>`port` int<br>`version` str<br>`busy` bool | Is the AdomBridge add-in loaded and answering inside Fusion? Reports addinReady, port and version, plus busy when a long command holds the main thread. | 15 | yes | - |+| `fusion_activate_document` | documents | `name`: required str (document name as reported by fusion_get_app_state) | `success` bool<br>`activeDocument` str | Make a named open document the ACTIVE one before driving it. | 60 | - | - |+| `fusion_action_ledger` | introspect/etiquette | `limit`: optional int (default 50) | `actions` [{at, action, detail}] | Read the append-only record of what the bridge did in the BACKGROUND on this machine - dialogs it answered, Untitled scratch docs it swept, Fusion auto-starts, add-in restarts. | 15 | yes | - |+| `fusion_save_to_cloud` | cloud | `name`: required str<br>`projectName`: optional str<br>`folderPath`: optional str<br>`description`: optional str | `success` bool<br>`urn` str | Save the ACTIVE document to Autodesk cloud storage with an explicit name and destination. | 180 | - | - |+| `fusion_take_screenshot` | introspect/etiquette | `outputPath`: optional str | `success` bool<br>`path` str | Screenshot the Fusion window in the BACKGROUND (no focus steal, reads through occlusion). | 60 | yes | - |+| `fusion_verb_times` | introspect/etiquette | `{}` (none) | `stages` {name: {count, p50, p90}} | This machine MEASURED timings per verb/stage - the same store that paces every progress bar and ETA. | 15 | yes | - |+| `fusion_library_parts` | library | `libraryPath`: required str (also accepts lbrPath/filePath/path) | `success` bool<br>`devicesets` [{name, description, variants:[{fullName, device, technology, package,...<br>`totals` {devicesets, variants, withMpn, withDistributor}<br>`metadataOk` bool<br>`warnings` [] | Every ORDERABLE variant in a .lbr with its part numbers - offline, no Fusion needed. | 15 | yes | - |+| `fusion_plan_library_import` | library | `parts`: optional [{package, lbrPath, modelPath}]<br>`stepPath`: optional single .step when not passing parts[]<br>`libraryPath`: optional .lbr for context | `success` bool<br>`fusion` {installed, running, addinReady, status, message}<br>`plan` [{stage, label, estimatedSec, confidence, needsUserConsent?}]<br>`estimatedSec` float<br>`estimatedSecIfAlreadyOpen` float<br>`summary` str | PRE-FLIGHT for a library import: does NO work and changes nothing. | 20 | yes | - |+| `fusion_live_feed` | introspect/etiquette | `action`: start\|stop\|status\|frames<br>`intervalSec`: optional float (default 1.0)<br>`maxSec`: optional float (default 600)<br>`since`: frames only: return ticks newer than this | `success` bool<br>`running` bool<br>`tick` int<br>`frames` [{tick, kind:main\|popup, path, title, at}] | A ~1 fps look INTO Fusion while the bridge drives it, kept as a BOX-SIDE ring buffer (~10 min). | 15 | yes | - |+| `fusion_restart_for_addin` | lifecycle | `save`: optional bool (default true) | `success` bool<br>`addinReady` bool<br>`tookSec` float<br>`steps` [{step, ok}] | ASYNC: returns immediately (started:true) and restarts Fusion in the background, SAVING the user's open documents first; poll fusion_readiness until ready with the new addinVersion (a... | 300 | - | - |+| `fusion_inspect_bodies` | documents | `worldSpace`: optional bool (resolve through occurrence transforms; default false = root component only)<br>`occurrence`: optional str (substring filter on occurrence name, worldSpace only) | `success` bool<br>`units` str (mm)<br>`bodyCount` int<br>`documentName` str<br>`bodies` [{name,owner,bbox:{x,y,z},sizeMm,volumeMm3,areaMm2,faceCount,cylindricalFaceCount,... | GEOMETRY READ-BACK: what actually got built, in MILLIMETRES. | 130 | - | `fusion_get_app_state` |+| `fusion_uninstall` | lifecycle | `dryRun`: optional bool (report the paths, delete nothing)<br>`cascade`: optional bool (set by ab)<br>`name`: optional str (set by ab) | `success` bool<br>`dryRun` bool<br>`fusionRunning` bool<br>`removed` [{path,kind}]<br>`failed` [{path,kind,error}]<br>`skipped` [{path,kind,why}] | CASCADE CLEANUP, called by ab's bridge_uninstall BEFORE this bridge's cache is deleted (ab 2.0.35+). | 60 | - | - |++---++## Self-describe  (1)++| verb | category | args (exact names + types + defaults) | key response fields | what it does | timeout | LR | statusVerb |+|---|---|---|---|---|---|---|---|+| `fusion_describe` | describe | `{}` (none) | `success` bool<br>`verbs` [{name,summary,input,output,timeoutSeconds,statusVerb,longRunning,example}] | Self-describe every verb the bridge exposes (this list) for ab's Verbs tab + runner. | 20 | - | - |++---++# Appendix++## (a) The exact `verbs[]` array in `bridge.json`++`bridge.json` (`manifest_version: 1`, `name: "fusion360"`, `version: 1.9.341`, `verbPrefixes: ["fusion_"]`)+lists **57** verbs — a hand-maintained *subset* of the 131 that `fusion_describe` returns. Routing is by+`verbPrefixes`, not by this list, so the extra 75 still route; the array is advertising, not a gate.++```+fusion_aps_browse            fusion_aps_create_folder     fusion_aps_download+fusion_aps_file_info         fusion_aps_get               fusion_aps_open+fusion_aps_recent            fusion_aps_search            fusion_aps_set_client_id+fusion_aps_signin            fusion_aps_status            fusion_aps_upload+fusion_aps_versions          fusion_attach_3d_package     fusion_board_info+fusion_build_library_3d      fusion_capture_library_views fusion_cleanup_cloud_files+fusion_close_window          fusion_describe              fusion_detect_layers+fusion_dismiss_blocking_dialogs                           fusion_electron_pan+fusion_electron_run          fusion_electron_select       fusion_electron_zoom+fusion_export_3mf            fusion_export_bom            fusion_export_cpl+fusion_export_dwg            fusion_export_dxf            fusion_export_gerbers+fusion_export_iges           fusion_export_obj            fusion_export_step+fusion_export_stl            fusion_export_usdz           fusion_generate_package+fusion_get_app_state         fusion_get_preferences       fusion_install_fusion+fusion_kill                  fusion_load_design_rules     fusion_make_3d_package+fusion_open_by_urn           fusion_open_lbr              fusion_readiness+fusion_run_modeling_script   fusion_search_cloud_files    fusion_set_design_rules+fusion_set_preference        fusion_show_2d_board         fusion_show_3d_board+fusion_show_schematic        fusion_start                 fusion_stop+fusion_walk_cloud_tree+```++**Drift found:** `fusion_load_design_rules` is the ONLY verb in `bridge.json`'s array that has **no**+`describe.py` entry (it is documented in `VERBS.md` but was never added to `_T`). The reverse drift is+75 verbs live-and-described but absent from `bridge.json`.++Other manifest fields worth mirroring into a `swx` bridge:+`statusVerb: "fusion_get_app_state"`, `uninstall: "fusion_uninstall"`,+`spawn: {kind: python, entrypoint: server.py, port: 0, healthEndpoint: "/status", stopMethod: kill, persistent: true}`,+`detect.installVerb: "fusion_install_fusion"`,+`detect.hostAppOptionalVerbs` (verbs allowed to run with the host app absent):+`readiness, describe, get_app_state, status, addin_status, aps_status, aps_search, aps_browse, aps_recent, install_fusion`,+and `timeouts` = `{default: 60, verbs: {...per-verb, keys WITHOUT the fusion_ prefix...}, prefixes: [{prefix: "open", seconds: 150}]}`.+Note the manifest `timeouts.verbs` numbers and `describe.py`'s `timeoutSeconds` are two separate stores and+do not always agree (e.g. `start`: 90 in the manifest, 150 in describe).++## (b) Response-envelope conventions the Fusion bridge uses++**1. `success` + `errorCode` + `error`.** Failures return `{"success": false, "errorCode": "<snake_case>", "error": "<human sentence>"}`.+Only `fusion_web_signin` declares `errorCode` in its describe schema, but the whole bridge emits it.+The full set of `errorCode` values found in `server.py` / `aps.py` / handlers:++```+3d_attach_failed            activation_refused          addin_not_answering+addin_restart_required      addin_restarting            adom_lbr_failed+adom_lbr_unavailable        artifact_not_in_library     bad_activity_mode+bad_bundle                  bad_code                    bad_menu_item+bad_name                    bom_walk_budget_exceeded    build_in_progress+code_field_not_found        command_running             confirm_missing+create_3d_package_failed    create_dialog_missing       file_not_found+foreground_reason_required  fusion_addin_busy           fusion_addin_not_responding+fusion_autostart_failed     fusion_host_hung            fusion_not_installed+fusion_not_running          google_sso_unavailable      human_credential_required+inspect_failed              installer_download_failed   installer_launch_failed+kicad_source_required       lbr_invalid                 lbr_preflight_failed+libio_menu_missing          library_manager_missing     library_not_active+library_open_failed         library_path_required       library_unreadable+main_thread_busy            no_2fa_window               no_3d_package_bound+no_3d_reference             no_cloud_project            no_fusion_window+no_input                    no_lbr                      no_path_argument+no_prove_run                no_run_in_flight            no_work_folder+not_a_library               not_found                   not_in_hub+not_linked_yet              not_listed                  picker_missing+pin_map_invalid             restart_failed              run_not_found+save_failed                 too_large                   unknown_package_type+unknown_run_id              unsaved_named_document      unsupported_extension+upload_in_flight_close_deferred                         use_open_board_instead+user_owns_restart           wrong_document              wrong_footprint_loaded++(from aps.py:)+aps_app_missing_product     aps_not_configured          aps_not_signed_in+refused_root_upload++(surfaced on a poll, not a direct return:)+cancelled_by_user           (with cancelledAt + how many parts were done)+```++The recurring shapes worth copying: `*_not_running` / `*_not_installed` / `*_busy` /+`*_not_responding` (host-app health), `*_restart_required` (host must be restarted to load the add-in —+returned as a payload the CALLER turns into the human ask, never a silent restart),+`foreground_reason_required` (etiquette gate, below), `unknown_run_id` / `run_not_found` / `no_run_in_flight`+(async run bookkeeping).++**2. `_hint` — the ONE principle.** Every meaningful response carries a `_hint` string telling the calling AI+its exact next action; the bridge assumes the AI reads CLI output, not the on-disk skill. `_hint` is+*appended to*, never replaced, by the etiquette wrapper (`dispatch_command` in `server.py` only appends its+note if `"focus was NOT touched"` is not already in the hint). Declared explicitly in describe for+`fusion_attach_3d_package` (`_hint`: "the Save-dialog click + verify steps") and referenced in the summaries of+`fusion_signin` and `fusion_demo`.++**3. No `_next` key.** Grep of `describe.py`, `server.py` and the docs finds **zero** `_next` usage — the+Fusion bridge folds "what to do next" into `_hint` plus the explicit `statusVerb` field. (If the SolidWorks+bridge wants a `_next`, it is a new convention, not a mirrored one.)++**4. `windowEtiquette` — a three-state ENUM, not a boolean.** `server.py` sets+`res.setdefault("windowEtiquette", "foreground" | "background")` on every verb in the `_WINDOW_RAISING` set.+Absent = "this verb does not report etiquette". The background branch also appends this exact `_hint`:++> "Window opened/changed in the BACKGROUND - the user's focus was NOT touched; do NOT foreground anything to+> compensate. Render results via fusion_state. If the USER asks to watch, re-call with+> {"foreground": true, "foregroundReason": "<why, shown to the user as a 3s caption>"}."++`_WINDOW_RAISING` (the annotated set, verb names WITHOUT the `fusion_` prefix):+`close_document, close_window, open_cloud_file, open_by_urn, aps_open, open_design, open_lbr, open_schematic,+open_board, import_electronics, import_step, new_electronics_from_eagle, show_schematic, show_2d_board,+show_3d_board, run_modeling_script, execute_text_command, electron_run, attach_3d_package, make_3d_package,+build_library_3d, capture_library_views, generate_package, export_optimized_glb, board_stackup, save_to_cloud,+start, show_symbol, show_footprint, show_3d_package, make_test_project, bind_library_3d, show_library,+show_project`.++**5. Progress / long-running frames.** There is no inline `progress` block in any describe output. Progress is+*polled*, via three distinct poll verbs:++| poll verb | started by | progress fields |+|---|---|---|+| `fusion_prove_result` | `fusion_install_library_bundle`, `fusion_create_library`, `fusion_build_library_3d` | `stage`, `verdict`, `evidence[]`, `percent` (float, MEASURED — never guessed), `etaSec` (float). Args `runId`, `inlineFrames`, `shots`, `sinceShot` |+| `fusion_demo_progress` | `fusion_demo {mode:"tour"}` | `percent` (int), `step`, `stepLabel`, `done`, `shots[]`, `shotCount`, `stepShot` (`dict\|absent`). Args `demoId`, `imagesAs` (`paths\|base64\|both`), `sinceShot` |+| `fusion_live_feed` | `{action:"start"}` | `running`, `tick`, `frames[{tick, kind:main\|popup, path, title, at}]`. Args `action` (`start\|stop\|status\|frames`), `intervalSec` (default 1.0), `maxSec` (default 600), `since` |++The **`sinceShot` windowing convention** (send only frames the caller has not already received) appears on both+`fusion_prove_result` and `fusion_demo_progress`; `fusion_live_feed` uses `since` for the same purpose.+`fusion_verb_times` returns `stages: {name: {count, p50, p90}}` — the *measured* history the percent/eta come+from. Rule stated in `dev-skills/fusion-verb-timing`: compute progress at READ time from measurements; never+present a guessed number as a measured one.++**6. Async handoff: `runId` + `statusVerb` + `longRunning`.** 71 of 131 verbs are `longRunning: true`+(they keep working after ab's relay timeout). A verb that cannot fit a relay window returns IMMEDIATELY with+`runId` (str) and a `statusVerb` *in the response body* naming what to poll+(`fusion_install_library_bundle`, `fusion_create_library`, `fusion_aps_open`, `fusion_install_fusion`,+`fusion_cancel_run`, `fusion_describe` carry the `statusVerb` response key). `fusion_cancel_run {runId?}` →+`{cancelRequested, runId, stage, statusVerb: "fusion_prove_result"}`; cancellation surfaces on the NEXT poll as+`errorCode: cancelled_by_user` + `cancelledAt`. Per-verb `statusVerb` in the describe table:+`fusion_get_app_state` (19 verbs), `fusion_mcp_status` (5), `fusion_prove_result` (3), `fusion_readiness` (3),+`fusion_get_preferences` (2), `fusion_state` (2), and one each of `fusion_signin`, `fusion_demo`,+`fusion_aps_status`; 95 verbs declare none.++**7. `capture: true` = ONE call, ONE consent.** On `fusion_install_library_bundle`, `fusion_show_schematic`,+`fusion_show_2d_board`, `fusion_show_3d_board`, `fusion_build_library_3d`, `fusion_show_symbol`,+`fusion_show_footprint`, `fusion_show_3d_package`, `fusion_show_library`, `fusion_show_project`. The bridge+settles the surface (waits for the add-in main thread + a paint beat) and returns proof **inline** as+`shot: {title, image, thumbnailDataUrl, maxWidth}` — base64 frame plus a ready-to-use `data:` URL for browser+callers. `captureMaxWidth` shrinks it (320 keeps a `/command` body small; default 640). The bridge encodes PNG+but the relay may transcode to WebP — **sniff, do not assume**. This exists so callers stop polling+`fusion_state` after a show, because each page-side poll costs one human consent (issue #30).++**8. Image return convention.** Verbs that produce images accept an `imageAs` / `imagesAs` arg+(`path` | `base64` | `both`, default `path`) and return `screenshot` (str path) plus `screenshotBase64` when+base64 was asked for.++**9. `fusion_describe` double-nesting.** The describe handler returns+`{success, bridge:"fusion360", verbCount, verbs:[...], data:{bridge, verbCount, verbs}}`. `verbs` at the TOP+level is what ab's Verbs tab reads off the raw `/command` response; ab's relay STRIPS non-standard top-level+fields on the CLI proxy path, so the same payload is repeated under `data` (which the relay forwards).+Any `swx_describe` must do the same double-nesting. Per-verb entry shape:+`{name, summary, input, output, timeoutSeconds, statusVerb, longRunning, example}`; entries whose name ends in+`_note` are filtered out of the emitted list (doc-only rows in the table).++**10. Quietness audit log.** `fusion_state` returns `focusEvents: [{at, verb, outcome: "foreground"|"refused", reason}]`+— every time the bridge took the user's foreground OR refused a bare `foreground:true`. `fusion_action_ledger+{limit=50}` returns `actions: [{at, action, detail}]`; `fusion_alerts {sinceSec=300}` returns `alerts: [{at, text}]`.++## (c) Verbs that are gated / require a `reason`++**Foreground etiquette gate (hard-enforced, returns `errorCode: foreground_reason_required`).**+Declared in `describe.py` on three verbs — `fusion_show_symbol`, `fusion_show_footprint`,+`fusion_show_3d_package` — with the identical arg pair:++- `foreground`: `optional bool` — **DEFAULT IS BACKGROUND** (no focus steal; response carries `windowEtiquette:"background"`). `true` REQUIRES `foregroundReason` and shows it to the user as a 3s ab caption before any focus change — only when the USER asked to watch.+- `foregroundReason`: **required WITH `foreground:true`** — a short user-facing sentence shown as the 3s caption (e.g. "You asked to watch the 3D board build").++`server.py` enforces it for the whole `_WINDOW_RAISING` set (list in §b4), not just those three: a bare+`foreground:true` with no `foregroundReason` is REFUSED with+`{"success": false, "errorCode": "foreground_reason_required", "error": "foreground:true needs foregroundReason (a short user-facing sentence)."}`+and the refusal is recorded in `fusion_state.focusEvents` as `outcome:"refused"`. When the gate passes, the+bridge strips `foreground`/`foregroundReason` before forwarding to the add-in.++**Soft `reason` (optional, defaulted — used as the caption text, never blocking).** `server.py` calls+`_notify_before_foreground(args.get("reason") or "<default sentence>")` for the foreground-click and+foreground-keypress paths, and passes `reason: args.get("reason") or "sign in to an Autodesk web surface"` on+the `fusion_web_signin` path.++**Other gates that are not `reason`-shaped but block the same way:**+- **`.lbr` preflight gate** — `fusion_open_lbr` and `fusion_create_library` run `fusion_preflight_lbr`'s checks automatically and refuse with `lbr_preflight_failed` / `library_unreadable` / `not_a_library` / `lbr_invalid`.+- **Add-in restart gate** — `addin_restart_required` / `user_owns_restart`: the add-in was installed or updated while Fusion was already open. The bridge returns the payload and the CALLER must turn it into a human ask (`fusion_restart_for_addin` exists but the restart is the user's to own).+- **Human-credential gate** — `human_credential_required`, `no_2fa_window`, `google_sso_unavailable` on the sign-in verbs (`fusion_signin`, `fusion_signin_2fa`, `fusion_web_signin`, `fusion_aps_signin`); `fusion_signin` reports the exact wall in `signinWall`: `twofactor_email_code | credentials | protocol_handoff` (plus `signinWallHint`).+- **Never-charge gate** — the manifest description states APS calls are capped to the free tier; `fusion_aps_*` refuse with `aps_not_signed_in` rather than falling back to a paid path.+- **Main-thread / busy gates** — `main_thread_busy`, `fusion_addin_busy`, `command_running`, `build_in_progress`, `upload_in_flight_close_deferred`.+- **Root-upload refusal** — `refused_root_upload` on `fusion_aps_upload` (no uploading to a hub root).
docs/build-2026-09-01.mdadded+74
@@ -0,0 +1,74 @@+# three-musketeers build — solidworks-bridge Rust port — 2026-09-01++**Task:** Port the Adom SOLIDWORKS bridge from Python + PowerShell to a single native Rust binary, at top-tier quality (kicad/pup/native-browser bar).+**Stage:** Compiled + mock-tested on Linux; Windows COM backend compile-verified, awaiting a real SOLIDWORKS install for live shakedown (trial serial pending from Hawk Ridge).+**Rounds:** 2 (build → adversary → fix → verify + regression-adversary → final tightening → converge).+**Models:** Builder Opus · Adversary Opus (fresh context each round) · Verifier Sonnet. Plus a parity-diff pass (Sonnet) against the deleted Python implementation.++## What was built++One binary, `swx-bridge` (`spawn.kind:"exe"`, ~10ms cold start, no interpreter to provision), replacing `server.py` + `com_host.py` + the PowerShell COM sidecar. Same 23 `swx_*` verbs, same response shapes, same error codes, same mock data as v0.1.++- **Two modes in one exe.** HTTP server (tiny_http + serde) that ab drives; and `--com-host`, a child process the server spawns from its own `current_exe()`, speaking JSON-lines over stdio. One file to ship, one `killImageName` for both.+- **COM in a killable child, not a thread.** A wedged COM call (SOLIDWORKS on a modal, a runaway rebuild) can't be killed as a thread but can as a process. The server owns the child's lifecycle: lazy spawn, one request in flight, per-request timeout, kill + respawn on crash/hang, stderr tail surfaced in the failing verb's `detail`. Real COM is late-bound IDispatch via the `windows` crate (`GetActiveObject` before `CoCreateInstance`, STA), behind a `Backend` trait with a `MockBackend` twin so the whole surface tests with no SOLIDWORKS and no Windows.+- **Verb families:** file management (find/open/docs/save/close/export STEP·IGES·STL·PDF·DXF·DWG·PNG·JPG·Parasolid/pack-and-go), custom properties (get/set), BOM (per-file+configuration quantities with custom-property columns, JSON or CSV to disk), analysis (mass properties, interference, rebuild-health census), plus status/readiness/describe/state/progress/screenshot/com_eval/uninstall.+- **SDK etiquette throughout:** `_hint` on every response, `_reportIssues` on failures, `windowEtiquette:"background"`, terminal `progress` frames + a live `swx_progress`, one log line per verb with caller identity, 48h/300-file scratch prune, an `swx_uninstall` that removes only the bridge's own exports dir.++**How to run / exercise it**+```bash+cd /home/adom/project/solidworks-bridge+cargo build                                            # linux debug (mock mode)+cargo test                                             # 40 unit + 4 e2e + 5 protocol+cargo build --release --target x86_64-pc-windows-gnu   # -> target/.../release/swx-bridge.exe (~851K)+SWX_MOCK=1 SWX_SCRATCH_DIR=/tmp/swx ./target/debug/swx-bridge --port 24695 &+curl -s localhost:24695/status+curl -s localhost:24695/command -d '{"command":"swx_bom","args":{"format":"csv"}}'+```++## Plan amendments (builder was right where the plan was wrong)++Recorded in full in `docs/RUST-PORT-BRIEF.md` → "Build notes — 2026-09-01". Highlights:++| Plan assumed | Builder did instead | Why |+|---|---|---|+| Adopt hello-rust's release profile wholesale (incl. `panic="abort"`) | Dropped `panic="abort"` | The com host catches panics and answers them as errors — that needs unwinding. A bad late-bound call should cost one verb, not the user's open documents. |+| "next call respawns the child" is enough crash recovery | Reap-before-write + a single retry limited to pre-execution failures | The naive reading still costs one failed verb; a mid-request death is reported, never silently re-run (re-running an export behind the caller's back is worse than an error). |+| `swx_com_eval` runs raw PowerShell/script | A late-bound call-chain evaluator (`$sw`/`$doc` dotted chains, literal args), parser outside `cfg(windows)` so it unit-tests here | No script host on the live machine; auditable; testable on Linux. |+| `platform: "win32"` (Python's `sys.platform`) | `platform: "windows"` | Cleaner; documented as an intentional value change, not silent drift. |++## Adversary findings resolved++Round 1: **1 Critical, 6 High, 8 Med, 7 Low** — all fixed or rebutted with reason. Round 2 (regression): **0 substantive, 5 Low residuals + 1 doc nit** — all fixed. Selected:++| Finding | Location | Sev | Resolution |+|---|---|---|---|+| VARIANT double-free: arg VARIANTs bitwise-copied into a `Vec<VARIANT>` — the `windows 0.62.2` VARIANT DOES have drop glue, so every BSTR/IDispatch arg was freed twice (heap corruption on first real `swx_open`) | variant.rs | **Critical** | Fixed: DISPPARAMS args are `Vec<ManuallyDrop<VARIANT>>`; whole `Var` ownership model re-audited to one-AddRef/one-Release. Round-2 adversary confirmed no double-free and no under-free/leak, compile-verified for the Windows target. |+| `find_files` returned OLDEST files when `limit` tripped (truncated in walk order, then sorted) | findfiles.rs | High | Fixed: bounded size-`limit` min-heap by mtime → correct newest-first AND O(limit) memory. |+| `swx_uninstall` `remove_dir_all`'d ab's own cache root (the running exe) | verbs.rs, scratch.rs | High | Fixed: scoped to `<cache>/exports`, best-effort per item; e2e asserts the cache root survives. |+| `swx_status` (the statusVerb ab polls after a timeout) blocked behind the com-host mutex | verbs.rs, comhost/mod.rs | High | Fixed: try_lock snapshot (`busy`/`hostPid`/`inFlight`); poison distinguished from contention so it can't lie busy after a panic. |+| No panic isolation in HTTP workers → 500 + permanent worker loss + process death | server.rs | High | Fixed: two-layer `catch_unwind` → JSON `success:false` + `_reportIssues`; worker survives. |+| `swx_bom` labelled `risk:"read"` but wrote a caller-chosen file (no relay-caller approval prompt) | verbs.rs | High | Fixed: relabelled `write`; `safe_out` refuses relative/`..`/drive-relative `out` on bom-csv, export, pack-and-go. |+| Interference `Done()` skipped on panic; scalar SAFEARRAYs read as `[]`; non-silent OpenDoc fallback; silent-zero rebuild errors; mock/COM `eval` drift; `swx_stop` reported failure after quitting | com.rs, variant.rs, mock.rs | Med | All fixed (Drop guard; scalar→1-elem coercion + VT_UNKNOWN; fallback removed; `unreadableFeatures`; mock runs the real parser; ExitApp RPC-disconnect = success). |+| Round-2 residuals: drive-relative `C:foo` admitted; status busy-forever after poison; find_files unbounded buffer; watchdog `STILL_ACTIVE`/259 misread + pid-reuse race; doc nit | verbs.rs, findfiles.rs, host.rs | Low | All fixed (separator-required absolute check; poison-aware snapshot; bounded heap; `WaitForSingleObject`; pid-reuse documented as benign). |++Rebutted/kept with reason: coverage gate stays call-based (the three-way bridge.json↔describe↔calls check already enforces it); `topLevelOnly` default `false` kept (it's the documented default, echoed back); free_port TOCTOU left (single-instance guard makes any collision a clean failure).++## Behavioral verification (Verifier, Sonnet — drove the real binary over HTTP)++| Flow exercised | What the verifier did | Result | Notes |+|---|---|---|---|+| Health + describe | GET /status; swx_describe | PASS | led/summary/tooltip, mock:true, all 23 verbs listed |+| Full CAD flow | start→open asm→bom(json+csv)→mass_props→interference→rebuild→export STEP→pack-and-go→props get/set/save→close→stop | PASS | CSV parsed with Material/PartNo columns; STEP had real bytes; props round-tripped (dirty:true→save→dirty:false) |+| find_files ordering | real .sldprt/.sldasm/.slddrw + ~$lock + .txt fixtures, distinct mtimes | PASS | `limit:2` returned the two NEWEST; lock + .txt excluded; subdir descended; query/types correct |+| Error paths | unknown verb, malformed JSON, 9MB body, com_eval w/o reason, bom/interference on a part, `..` csv out | PASS | 400 / 413 / errorCode:"reason_required" / clean assembly-required failure / errorCode:"unsafe_path" |+| Panic recovery | `SWX_TEST_PANIC=swx_docs` then call, then swx_status | PASS | clean JSON error, server survived, next request succeeded |+| Slow status | `SWX_MOCK_SLOW_MS=6000`, swx_start in background, poll swx_status | PASS | status answered in 0.013s with busy snapshot while start took the full ~6s |+| Uninstall scoping | populate exports/ + sibling dirs, swx_uninstall | PASS | removed only exports/, siblings + root untouched |+| Full suite + cross-compile | cargo test; windows-gnu release build | PASS | 49 passed / 0 failed / 1 ignored; swx-bridge.exe produced, valid MZ PE header |++## Open items / human calls++- **The Windows COM backend has never executed.** It compiles clean for `x86_64-pc-windows-gnu` and the double-free class is fixed, but marshalling correctness (late-bound byref `[out]` params, SAFEARRAY-vs-scalar return shapes, `GetErrorCode2`'s signature) can only be flushed by a live run. Round-2 adversary confidence: ~75% on memory-safety, residual risk is functional/marshalling. **First live-run order to exercise the risky marshalling:** `swx_open` (byref errors/warnings) → `swx_props_get` (Get4 double-byref) → `swx_interference` (single vs multiple) → `swx_pack_and_go`. Removing the non-silent OpenDoc6 fallback is the single biggest first-contact risk — watch that `swx_open` still succeeds on a doc with missing references.+- **Watchdog wedged-child test is `#[ignore]`d** (PID-namespace-sensitive sandbox); the mechanism is code-verified and the graceful-orphan path is covered. Confirm on a real Windows host that the parent-liveness poll + `taskkill` path fires when the server is hard-killed mid-COM-call.+- **Not done (deliberate, later steps):** publish (release zip + manifest + skills pkg to wiki `adom/solidworks-bridge` per the adom-bridge-sdk-publish flow), hero image, and the v0.3 roadmap (drawing-table BOM extraction, `swx_show_*` family, measured cold/warm start history).+- **Two cosmetic verifier notes (not defects):** the generic COM-error `_hint` also shows for caller-side validation failures (e.g. bom-on-a-part); `swx_com_eval` grammar requires a `$sw.`/`$doc.` prefix, enforced and explained but worth a doc example.
docs/crate-bom.csvadded+33
@@ -0,0 +1,33 @@+item,name,configuration,quantity,file,AsPurchased,Definition,Description,DriveStyle,HeadStyle,Material,McMasterPN,Nomenclature,Part Number,PartNo,QtyPerCrate,Revision,Size,Source
+1,ASM-BASE,Default,1,C:\Users\Public\adom-crate\ASM-BASE.SLDASM,,,,,,,,,,,,,,
+2,ASM-CAP,Default,1,C:\Users\Public\adom-crate\ASM-CAP.SLDASM,,,,,,,,,,,,,,
+3,ASM-END-PANEL,Default,2,C:\Users\Public\adom-crate\ASM-END-PANEL.SLDASM,,,,,,,,,,,,,,
+4,ASM-SIDE-PANEL,Default,2,C:\Users\Public\adom-crate\ASM-SIDE-PANEL.SLDASM,,,,,,,,,,,,,,
+5,B1,Default,2,C:\Users\Public\adom-crate\parts\B1.SLDPRT,,,2x4 96in - base long rails,,,Pine,,,,B1,2,,96 x 3-1/2 x 1-1/2 in,NSF PCL machine crate packet rev D
+6,B2,Default,2,C:\Users\Public\adom-crate\parts\B2.SLDPRT,,,2x4 41in - base end rails,,,Pine,,,,B2,2,,41 x 3-1/2 x 1-1/2 in,NSF PCL machine crate packet rev D
+7,B3,Default,3,C:\Users\Public\adom-crate\parts\B3.SLDPRT,,,2x4 41in - base crossmembers,,,Pine,,,,B3,3,,41 x 3-1/2 x 1-1/2 in,NSF PCL machine crate packet rev D
+8,B4-fix,Default,4,C:\Users\Public\adom-crate\parts\B4-fix.SLDPRT,,,2x4 10in - corner caster doubler pads,,,Pine,,,,B4,4,,10 x 3-1/2 x 1-1/2 in,NSF PCL machine crate packet rev D
+9,B5,Default,2,C:\Users\Public\adom-crate\parts\B5.SLDPRT,,,2x4 43-7/8in - end pull handle,,,Pine,,,,B5,2,,43-7/8 x 3-1/2 x 1-1/2 in,NSF PCL machine crate packet rev D
+10,B6,Default,2,C:\Users\Public\adom-crate\parts\B6.SLDPRT,,,2x4 43-7/8in - payload hold-down bar,,,Pine,,,,B6,2,,43-7/8 x 3-1/2 x 1-1/2 in,NSF PCL machine crate packet rev D
+11,B7-fix,Default,8,C:\Users\Public\adom-crate\parts\B7-fix.SLDPRT,,,2x4 12in - side-station spacer block (rip to fit),,,Pine,,,,B7,8,,12 x 3-1/2 x 1-1/2 in,NSF PCL machine crate packet rev D
+12,CASTER-6,Default,6,C:\Users\Public\adom-crate\fasteners\CASTER-6.SLDPRT,"YAEMIKY 6in PU, all swivel + brake, 3000 lb per set of 4 (Amazon 112-2336638-0154627)",UNKNOWN,"6in swivel plate caster, polyurethane wheel, total-lock brake, 820 lb - six per crate bolted through deck into the 2x4 ring",n/a,"Top-plate mount, 4-5/8 x 3-3/4in for 3/8in bolts",Galvanized Steel,2498T652,2498T652_NO THREADS_Easy-Turn Caster with 4-5-8 x 3-3-4 Plate,2498T652_NO THREADS_Easy-Turn Caster with 4-5-8 x 3-3-4 Plate,CASTER-6,6,ANY,,NSF PCL machine crate packet rev D; 3-D STEP from mcmaster.com
+13,F-10x3,Default,108,C:\Users\Public\adom-crate\fasteners\F-10x3.SLDPRT,"SPAX #10 x 3in washer-head T-Star, Lowe's items 3753135 / 3753046",UNKNOWN,"Structural wood screw, flanged rounded washer head, Torx - the #10 x 3in SPAX washer-head T-Star field fastener",Torx (T-Star equivalent),Flanged rounded washer head,Galvanized Steel,90396A180,90396A180_NO THREADS_Flanged Rounded Head Screws for Wood,90396A180_NO THREADS_Flanged Rounded Head Screws for Wood,F-10x3,108,ANY,,NSF PCL machine crate packet rev D; 3-D STEP from mcmaster.com
+14,F-8x125,Default,197,C:\Users\Public\adom-crate\fasteners\F-8x125.SLDPRT,"SPAX #8 x 1-1/4in, Lowe's item 3753042",UNKNOWN,"Panel screw, flat countersunk head, Torx - #8 x 1-1/4in, ply to frame from the inside face",Torx,Flat countersunk 82deg,Galvanized Steel,3597N17,3597N17_NO THREADS_Torx Flat Head Screws for Wood,3597N17_NO THREADS_Torx Flat Head Screws for Wood,F-8x125,197,ANY,,NSF PCL machine crate packet rev D; 3-D STEP from mcmaster.com
+15,F-8x200,Default,49,C:\Users\Public\adom-crate\fasteners\F-8x200.SLDPRT,"SPAX #8 x 2in, Lowe's item 3753044",UNKNOWN,"Panel screw, flat countersunk head - #8 x 2in, deck to base ring from the deck side",Phillips,Flat countersunk 82deg,Galvanized Steel,90031A205,90031A205_NO THREADS_Phillips Flat Head Screws for Wood,90031A205_NO THREADS_Phillips Flat Head Screws for Wood,F-8x200,49,ANY,,NSF PCL machine crate packet rev D; 3-D STEP from mcmaster.com
+16,F-L25x250,Default,24,C:\Users\Public\adom-crate\fasteners\F-L25x250.SLDPRT,"SPAX 1/4 x 2-1/2in washer-head, Lowe's item 5641068",UNKNOWN,"Structural lag, flanged washer-face hex head - 1/4 x 2-1/2in, four per caster plate through deck into the 2x4 ring",External hex,Flanged (washer-face) hex head,Galvanized Steel,95526A175,95526A175_NO THREADS_Flanged Hex Head Screws for Wood,95526A175_NO THREADS_Flanged Hex Head Screws for Wood,F-L25x250,24,ANY,,NSF PCL machine crate packet rev D; 3-D STEP from mcmaster.com
+17,F-L25x300,Default,8,C:\Users\Public\adom-crate\fasteners\F-L25x300.SLDPRT,"SPAX 1/4 x 3in PowerLag, Lowe's item 3753018",UNKNOWN,"Structural lag, flanged washer-face hex head - 1/4 x 3in PowerLag, four per pull handle through bar + edge rail + ply",External hex,Flanged (washer-face) hex head,Galvanized Steel,95526A200,95526A200_NO THREADS_Flanged Hex Head Screws for Wood,95526A200_NO THREADS_Flanged Hex Head Screws for Wood,F-L25x300,8,ANY,,NSF PCL machine crate packet rev D; 3-D STEP from mcmaster.com
+18,F-W10,Default,8,C:\Users\Public\adom-crate\fasteners\F-W10.SLDPRT,"#10 3/4in washers, Lowe's item 61697",UNKNOWN,"Flat washer, 3/4in OD - under the pull-handle lag heads",n/a,Oversized round flat washer,Galvanized Steel,91090A126,91090A126_Zinc-Plated Steel Washers,91090A126_Zinc-Plated Steel Washers,F-W10,8,ANY,,NSF PCL machine crate packet rev D; 3-D STEP from mcmaster.com
+19,FM1-fix,Default,2,C:\Users\Public\adom-crate\parts\FM1-fix.SLDPRT,,,"Foam bed strip, 2in PE plank 4 x 88in",,,PE Low/Medium Density,,,,FM1,2,,88 x 4 x 2 in,NSF PCL machine crate packet rev D
+20,FM2-fix,Default,2,C:\Users\Public\adom-crate\parts\FM2-fix.SLDPRT,,,"Foam pad under hold-down bar, 1in PE plank",,,PE Low/Medium Density,,,,FM2,2,,43-7/8 x 3-1/2 x 1 in,NSF PCL machine crate packet rev D
+21,FM3-fix,Default,4,C:\Users\Public\adom-crate\parts\FM3-fix.SLDPRT,,,"Foam side-station pad, 2in PE plank 12 x 12in",,,PE Low/Medium Density,,,,FM3,4,,12 x 12 x 2 in,NSF PCL machine crate packet rev D
+22,FM4,Default,2,C:\Users\Public\adom-crate\parts\FM4.SLDPRT,,,"Foam end thrust pad, 2in PE plank (cut to fit at pack)",,,PE Low/Medium Density,,,,FM4,2,,24 x 24 x 2 in,NSF PCL machine crate packet rev D
+23,P1,Default,1,C:\Users\Public\adom-crate\parts\P1.SLDPRT,,,"Base deck ply, 48 x 96 x 15/32 CDX (full sheet, no cuts)",,,Pine,,,,P1,1,,96 x 48 x 0-15/32 in,NSF PCL machine crate packet rev D
+24,P2,Default,1,C:\Users\Public\adom-crate\parts\P2.SLDPRT,,,"Cap ply, 48 x 96 x 15/32 CDX (full sheet, no cuts)",,,Pine,,,,P2,1,,96 x 48 x 0-15/32 in,NSF PCL machine crate packet rev D
+25,P3,Default,2,C:\Users\Public\adom-crate\parts\P3.SLDPRT,,,"Side wall ply, 96 x 45 x 15/32 CDX (one rip)",,,Pine,,,,P3,2,,96 x 45 x 0-15/32 in,NSF PCL machine crate packet rev D
+26,P4,Default,2,C:\Users\Public\adom-crate\parts\P4.SLDPRT,,,"End wall ply, 43-7/8 x 45 x 15/32 CDX",,,Pine,,,,P4,2,,45 x 43-7/8 x 0-15/32 in,NSF PCL machine crate packet rev D
+27,P5,Default,4,C:\Users\Public\adom-crate\parts\P5.SLDPRT,,,"Side-station backer, 12 x 12 x 15/32 CDX (from offcuts)",,,Pine,,,,P5,4,,12 x 12 x 0-15/32 in,NSF PCL machine crate packet rev D
+28,R1,Default,6,C:\Users\Public\adom-crate\parts\R1.SLDPRT,,,Ripped rail 96in - side top/bottom rails + cap long rails,,,Pine,,,,R1,6,,96 x 1-3/4 x 1-1/2 in,NSF PCL machine crate packet rev D
+29,R2,Default,12,C:\Users\Public\adom-crate\parts\R2.SLDPRT,,,Ripped rail 41-1/2in - wall verticals,,,Pine,,,,R2,12,,41-1/2 x 1-3/4 x 1-1/2 in,NSF PCL machine crate packet rev D
+30,R3,Default,4,C:\Users\Public\adom-crate\parts\R3.SLDPRT,,,"Ripped rail 45in - end edge rails, full height",,,Pine,,,,R3,4,,45 x 1-3/4 x 1-1/2 in,NSF PCL machine crate packet rev D
+31,R4-fix,Default,4,C:\Users\Public\adom-crate\parts\R4-fix.SLDPRT,,,Ripped rail 40-3/8in - end top/bottom rails,,,Pine,,,,R4,4,,40-3/8 x 1-3/4 x 1-1/2 in,NSF PCL machine crate packet rev D
+32,R5-fix,Default,5,C:\Users\Public\adom-crate\parts\R5-fix.SLDPRT,,,Ripped rail 44-1/2in - cap end rails + crossmembers,,,Pine,,,,R5,5,,44-1/2 x 1-3/4 x 1-1/2 in,NSF PCL machine crate packet rev D
docs/crate-build-log.mdadded+921
@@ -0,0 +1,921 @@+# Rebuilding the NSF machine crate in SOLIDWORKS, through the swx bridge++The SOLIDWORKS bridge's first real production job: take the NSF PCL machine-crate+build packet (wiki `adom/nsf-pcl`, `september-dc-event/machine-crate`, rev D) and+rebuild ONE crate as real SOLIDWORKS parts and assemblies — geometry, materials,+custom properties, fasteners — and export a BOM **from the SOLIDWORKS assembly**,+not from the wiki page.++Everything below happened on Drew's machine, live, against SOLIDWORKS Design+Professional for Makers 2026 (3DEXPERIENCE Connected, R2026x), driven entirely by+`swx_*` verbs from a container. The bridge stayed in its **default deny-by-default+posture** for the whole job: `SWX_ALLOW_USER_WRITES` was never set, so nothing the+user owns could be touched. Every document and every file in this build was+created by the bridge, in a new folder (`C:\Users\Public\adom-crate\`).++---++## 1. What had to be built into the bridge first++The job was gated on one thing the bridge could not do: **put components into an+assembly**. Without that there is no assembly, and without an assembly there is no+BOM. The parity report had written this off:++> `IAssemblyDoc::AddComponent5` returned `Nothing` for every combination tried+> live … The most likely explanation is that SOLIDWORKS **Connected** does not+> permit local-file component references.++That conclusion was wrong, and finding out why is the most valuable thing in this+log.++### Finding 1 — AddComponent5 works. Its RETURN VALUE is the lie.++`AddComponent5` really does return `Nothing` on this edition. It also really does+insert the component. The earlier probe measured success by the return value, so+it saw a failure that had not happened.++The fix is to stop trusting the return and **count the assembly's components+before and after the call**. `swx_add_component` does exactly that, and walks a+ladder of spellings (`AddComponent5` with each `swAddComponentConfigOptions_e`+value, then `AddComponent4`, `AddComponent3`, `AddComponent`) until the count+rises. On this install the rung that works is:++```+AddComponent5(path, 0, "", false, config, x, y, z)      # config option 0+```++Options 1, 2 and 3 all silently do nothing. The winning rung is cached, so a+400-fastener assembly pays the discovery cost once, not 400 times.++### Finding 2 — AddComponent5's X/Y/Z is NOT the component's origin.++Measured, not assumed. A part whose own centroid sits at (50, 6, -25) mm,+inserted at (0, 0, 0), leaves the assembly's centre of mass at the origin — i.e.+SOLIDWORKS centred the component on the point rather than putting its origin+there.++So `swx_add_component` writes each component's transform itself, after insertion,+via `IMathUtility::CreateTransform` + `IComponent2::Transform2`. `xMm/yMm/zMm`+then mean exactly one thing: *put the component's origin here*. Rotation+(`rotXDeg/rotYDeg/rotZDeg`) comes free with it — and rotation is not optional for+a crate, because the same ripped rail is used lying two different ways.++Because the insert call returns no handle, the components a batch inserted are+found by **matching the sequence of file paths** against the assembly's component+list — one contiguous run, forwards or backwards. That is O(n) COM calls for the+whole batch instead of a search per component, and it *proves* the mapping: if no+run matches, nothing is written and the response says so.++### Finding 3 — SOLIDWORKS' MathTransform 3x3 is COLUMN-major.++Filling `ArrayData[0..8]` row-major put a component rotated +90° about Z at −90°+instead. For the axis-aligned quarter turns a crate is made of, a transposed+rotation is a rotation the other way — silently wrong rather than obviously+broken. Caught by computing the expected assembly centre of mass in Python and+comparing: with the transpose fixed, three blocks at (0,0,0), (0,300,0)+Rz90 and+(600,0,0)+Ry90 give a measured CoM of **(206.333, 120.667, −33.333) mm** against a+predicted (206.333, 120.667, −33.333). Exact.++### Finding 4 (bug) — `run_script`'s documents were invisible to the com host.++`swx_close_doc` on a part the bridge had *just built* was refused:++> the com host refuses to close_doc: this document was not created by this bridge++`created_document()` looked for `{title, path}` under the result's `created` key,+but `run_script` nests: its `created` is the whole `new_document` result, whose+own `created` carries the title. The server's registry descended; the host's did+not. So the two ownership records disagreed, and the bridge would not clean up+after itself. Fixed (`src/comhost/host.rs`), with a unit test for both shapes.++### Finding 5 (bug, NOT fixed) — a bridge restart orphans the bridge's own documents.++The com host's record of what it created is persisted (`created_store`); the+**server's** scratch registry is in-memory only. Restart the server and it+disowns every document it made, while the host still owns them — the two vetoes+disagree in the direction that blocks cleanup, so the bridge can no longer close+its own scratch documents and they are stranded in the user's session.++Not fixed here (the honest fix is a second, independently-written persisted+registry on the server side — reading the host's file would collapse "two+independent vetoes" into one). Cost of this bug in this session: a handful of+orphaned scratch documents left open in Drew's SOLIDWORKS during bridge+development, before the crate build proper began.++### What shipped++`swx_add_component` — new verb, `components:[{filePath,xMm,yMm,zMm,rotXDeg,rotYDeg,rotZDeg,configuration}]`,+one batch per call, gated exactly like every other document-modifying verb+(the assembly must be one the bridge created; the component files are only read,+so they are not part of the gate). Plus `Var::r8_array` (the first SAFEARRAY this+bridge builds rather than reads), `script::parse_components`, `Component::transform`+and `script::locate_run` — all four unit-tested on Linux, plus an end-to-end+`swx_add_component` → `swx_bom` round trip in the e2e suite. Suites green: 79 unit,+28 e2e, 11 protocol.++---++## 2. The crate model++### Coordinate system++One frame for the whole crate, in the packet's own terms:++* **X** = the 96″ length, 0 at the near end plane.+* **Y** = the 48″ width, 0 at the near side plane.+* **Z** = height, **0 at the underside of the 2x4 base ring** (the caster mounting face).++The gravity stack, taken straight from D0 but with the plywood at its **as-purchased+15/32″** thickness rather than the packet's nominal ½″:++| | from | to |+|---|---|---|+| 2x4 base ring | 0 | 1.500 |+| deck ply `P1` | 1.500 | 1.96875 |+| walls (45″) | 1.96875 | 46.96875 |+| cap ply `P2` | 46.96875 | 47.4375 |+| cap ring | 47.4375 | **48.9375** |++48.9375″ against the packet's "49″ box" — the 1/16″ is the two sheets of 15/32″+plywood being 1/32″ thinner each than the ½″ the drawings round to. Every wall is+1.96875″ thick (rail 1.5 + ply 0.46875), which is the packet's "2″ thick" face.++### Parts++Lumber is **actual** size, never nominal: a 2x4 is 1.5 x 3.5, and the ripped rail+stock is 1.75 x 1.5 (mounted 1.5″ proud, exactly as C2 specifies). Every part was+built by `swx_run_script` (`new_part` → `sketch_rect` → `extrude` → `set_material`+→ six `set_prop`s), verified with `swx_inspect_bodies`, then `swx_save_as`'d into+`C:\Users\Public\adom-crate\parts\`.++| PartNo | Description | Size (in) | Size (mm) | Material | Qty/crate |+|---|---|---|---|---|---|+| `P1` | Base deck ply, 48 x 96 x 15/32 CDX (full sheet, no cuts) | 96 x 48 x 0-15/32 | 2438.400 x 1219.200 x 11.906 | Pine | 1 |+| `P2` | Cap ply, 48 x 96 x 15/32 CDX (full sheet, no cuts) | 96 x 48 x 0-15/32 | 2438.400 x 1219.200 x 11.906 | Pine | 1 |+| `P3` | Side wall ply, 96 x 45 x 15/32 CDX (one rip) | 96 x 45 x 0-15/32 | 2438.400 x 1143.000 x 11.906 | Pine | 2 |+| `P4` | End wall ply, 43-7/8 x 45 x 15/32 CDX | 45 x 43-7/8 x 0-15/32 | 1143.000 x 1114.425 x 11.906 | Pine | 2 |+| `P5` | Side-station backer, 12 x 12 x 15/32 CDX (from offcuts) | 12 x 12 x 0-15/32 | 304.800 x 304.800 x 11.906 | Pine | 4 |+| `R1` | Ripped rail 96in - side top/bottom rails + cap long rails | 96 x 1-3/4 x 1-1/2 | 2438.400 x 44.450 x 38.100 | Pine | 6 |+| `R2` | Ripped rail 41-1/2in - wall verticals | 41-1/2 x 1-3/4 x 1-1/2 | 1054.100 x 44.450 x 38.100 | Pine | 12 |+| `R3` | Ripped rail 45in - end edge rails, full height | 45 x 1-3/4 x 1-1/2 | 1143.000 x 44.450 x 38.100 | Pine | 4 |+| `R4` | Ripped rail 40-3/8in - end top/bottom rails | 40-3/8 x 1-3/4 x 1-1/2 | 1025.525 x 44.450 x 38.100 | Pine | 4 |+| `R5` | Ripped rail 44-1/2in - cap end rails + crossmembers | 44-1/2 x 1-3/4 x 1-1/2 | 1130.300 x 44.450 x 38.100 | Pine | 5 |+| `B1` | 2x4 96in - base long rails | 96 x 3-1/2 x 1-1/2 | 2438.400 x 88.900 x 38.100 | Pine | 2 |+| `B2` | 2x4 41in - base end rails | 41 x 3-1/2 x 1-1/2 | 1041.400 x 88.900 x 38.100 | Pine | 2 |+| `B3` | 2x4 41in - base crossmembers | 41 x 3-1/2 x 1-1/2 | 1041.400 x 88.900 x 38.100 | Pine | 3 |+| `B4` | 2x4 10in - corner caster doubler pads | 10 x 3-1/2 x 1-1/2 | 254.000 x 88.900 x 38.100 | Pine | 4 |+| `B5` | 2x4 43-7/8in - end pull handle | 43-7/8 x 3-1/2 x 1-1/2 | 1114.425 x 88.900 x 38.100 | Pine | 2 |+| `B6` | 2x4 43-7/8in - payload hold-down bar | 43-7/8 x 3-1/2 x 1-1/2 | 1114.425 x 88.900 x 38.100 | Pine | 2 |+| `B7` | 2x4 12in - side-station spacer block (rip to fit) | 12 x 3-1/2 x 1-1/2 | 304.800 x 88.900 x 38.100 | Pine | 8 |+| `FM1` | Foam bed strip, 2in PE plank 4 x 88in | 88 x 4 x 2 | 2235.200 x 101.600 x 50.800 | PE Low/Medium Density | 2 |+| `FM2` | Foam pad under hold-down bar, 1in PE plank | 43-7/8 x 3-1/2 x 1 | 1114.425 x 88.900 x 25.400 | PE Low/Medium Density | 2 |+| `FM3` | Foam side-station pad, 2in PE plank 12 x 12in | 12 x 12 x 2 | 304.800 x 304.800 x 50.800 | PE Low/Medium Density | 4 |+| `FM4` | Foam end thrust pad, 2in PE plank (cut to fit at pack) | 24 x 24 x 2 | 609.600 x 609.600 x 50.800 | PE Low/Medium Density | 2 |++**Materials.** This install's `SOLIDWORKS Materials.sldmat` has a `Woods` category+of exactly: Balsa, Beech, Cedar, Mahogany, Maple, Oak, Pine, Teak. There is no+"Plywood" and no "SPF"/"whitewood", so **`Pine`** is the honest closest match for+both the 15/32″ CDX and the KD whitewood 2x4s, and the real specification lives in+each part's `Material` and `Description` custom properties. Foam is+`PE Low/Medium Density`; fasteners are `Galvanized Steel`.++*Caveat, stated rather than hidden:* the SOLIDWORKS PE material is **solid**+polyethylene (~920 kg/m³). The crate's foam is 1.7 pcf plank (~27 kg/m³), so any+mass number that includes the foam parts overstates them by ~34x. The wood and+fastener masses are sound.++### Assembly structure++Five assemblies, not one flat pile, because the packet builds five things+(D1-D4 plus the crate) and a BOM that rolls up is worth more than one that does+not. `swx_bom`'s default flattens the whole tree, so a screw inside a side panel+that is instanced twice is counted twice.++| Assembly | Contents | Instances in the crate |+|---|---|---|+| `ASM-SIDE-PANEL` | 49 x F-8x125, 1 x P3, 2 x R1, 5 x R2 | 2 |+| `ASM-END-PANEL` | 1 x B5, 25 x F-8x125, 4 x F-L25x300, 4 x F-W10, 1 x P4, 1 x R2, 2 x R3, 2 x R4 | 2 |+| `ASM-CAP` | 49 x F-8x125, 1 x P2, 2 x R1, 5 x R5 | 1 |+| `ASM-BASE` | 2 x B1, 2 x B2, 3 x B3, 4 x B4, 6 x CASTER-6, 49 x F-8x200, 24 x F-L25x250, 1 x P1 | 1 |+| `ASM-CRATE` | 1 x ASM-BASE, 1 x ASM-CAP, 2 x ASM-END-PANEL, 2 x ASM-SIDE-PANEL, 2 x B6, 8 x B7, 108 x F-10x3, 2 x FM1, 2 x FM2, 4 x FM3, 2 x FM4, 4 x P5 | 1 |++Total component instances placed: **383** (245 in the sub-assemblies, 138 at the crate level).+++### Geometry verification++Every part was verified twice: once as it was built (`swx_inspect_bodies` between+the extrude and the save), and again as a FILE — each `.sldprt` reopened+read-only, its solid body's bounding box read back in millimetres, and its custom+properties read back, then closed. The second pass is the one that matters: it+proves what is on disk, not what a step list claimed.++The predicted numbers come from the packet's inch dimensions x 25.4, computed+independently in the generator (`crate.py`) rather than read off the model.+++### The assembly order, and where the interference check goes++The packet's A1 order is followed: base deck-down first, then the panels framed,+then the walls onto the deck, the ends dropped in between the side plies, the+bracing, and the cap last.++One deliberate choice about verification: **the interference check is run with+only the WOOD in the assembly, before any fastener goes in.** Screws are meant to+be embedded in timber, so an interference count taken after they are placed says+nothing — every screw is an "interference" by design. Wood-to-wood is the number+that means something, and it is the number the packet itself quotes+("0 interferences, 142 flush contacts").++The same check is also run independently in the generator, in Python, over+axis-aligned boxes before SOLIDWORKS is touched at all:++```+structural boxes: 74+X  -1.50000 ..  97.50000   (99.00000)   <- 99" over the handles+Y   0.00000 ..  48.00000   (48.00000)+Z   0.00000 ..  48.93750   (48.93750)   <- the "49 inch box"+box X (handles excluded): 0.00000 .. 96.00000  (96.00000)+interior clear: 92.06250 x 44.06250 x 45.00000+wood-to-wood interferences: 0+flush contacts: 170+```++against the packet's "footprint 96 x 48″ exact, 49″ box, interior 92 x 44 x 45″+clear, 99″ over the handles". Two independent computations of the same crate+agreeing is worth more than either one alone.++---++## 3. Bridge bugs and rough edges found doing real work++Beyond the two fixed above, this job surfaced these. They are worth as much as+the crate.++| # | What | Severity | Status |+|---|---|---|---|+| 1 | `AddComponent5` returns `Nothing` while succeeding — an entire capability was written off because the probe trusted the return value | high | worked around in `swx_add_component` (count, don't trust) |+| 2 | `AddComponent5`'s X/Y/Z is not the component's origin (it centres the component on the point) | high | worked around — the verb writes the transform itself |+| 3 | `MathTransform` `ArrayData`'s 3x3 is **column**-major; row-major fills rotate the wrong way, silently | high | fixed in `Component::transform`, unit-tested |+| 4 | `created_document()` did not descend `run_script`'s nested `created`, so the com host disowned every document the modelling DSL built and refused to close it | high | **fixed** |+| 5 | A bridge-server restart orphans the bridge's own documents: the com host's ownership record is persisted, the server's is memory-only, so they disagree in the direction that blocks cleanup | medium | **open** — needs a second, independently-written persisted registry on the server |+| 6 | The DSL's `save_as` is COPY mode, so the document stays untitled/unsaved and neither registry learns the path. The file is fine; the open document is not the file. `swx_save_as {copy:false}` is what a build script actually wants | low | documented; the crate build uses `swx_save_as` |+| 7 | `swx_add_component` reports the inserted component's `name` from the last entry of `GetComponents`, which is not reliably the newest — cosmetic, and it never feeds the transform mapping (that matches by path sequence) | low | open, cosmetic |+| 8 | Two `swx-batch` runs against the bridge at once interleave. The bridge serialises each CALL correctly, but a verb that resolves "the active document" then belongs to whichever batch touched it last | low | not a bridge bug so much as a documented hazard — **target every mutating verb explicitly** |+| 9 | `swx_com_eval` refused `$doc.GetMaterialPropertyName2("")` with *"Parameter not optional"* — the read allowlist is fine, the arity is not | low | open |++---++## 4. Fasteners++Drew's instruction, twice repeated and then a third time for the casters: **real+McMaster-Carr 3-D STEP models, not simplified cylinders**, with the head style+matched to the SPAX items actually bought at Lowe's, and the caster matched to the+YAEMIKY units bought on Amazon. The simplified-cylinder fallback was demoted to a+last resort, per item, with a logged reason.++Each STEP is imported with `swx_import`, given its material and custom properties+(including the McMaster part number, head style and drive style) with+`swx_run_script`, measured with `swx_inspect_bodies` + `swx_mass_properties`, and+saved as a `.sldprt` into `C:\Users\Public\adom-crate\fasteners\`.++**On orientation.** A vendor STEP arrives in the vendor's coordinate system, so+nothing about it is assumed. Each model's own bounding box gives the shank axis+(the long dimension), and the centre of mass says which END the head is on — a+head is heavier per unit length than a shank. Both are read back out of SOLIDWORKS+and fed to the placement maths, which then works in the packet's terms: *put this+screw's head bearing face here, driven that way.*++### Fastener sourcing — as purchased → McMaster++Every row is a real McMaster product page driven in `pup`, the CAD selector set to+**"3-D STEP no threads"**, and the file downloaded. No fabricated part numbers, no+simplified-cylinder fallbacks anywhere in this build. Compromises are named, not+buried.++| Tag | As purchased | McMaster P/N | Head / drive | Match |+|---|---|---|---|---|+| `F-10x3` | SPAX #10 x 3″ washer-head T-Star (Lowe's 3753135 / 3753046) | **90396A180** | Flanged rounded washer head, Torx | Head style **exact**. **Size compromise:** McMaster's only washer-head Torx wood-screw family (90396A) is No. 8 only, so this is #8 x 3-1/8″, not #10 x 3″. (An exact #10 x 3″ body with the *wrong* head, 90031A257, was also downloaded as an alternate.) |+| `F-8x125` | SPAX #8 x 1¼″ (Lowe's 3753042) | **3597N17** | Flat countersunk 82°, Torx | **Exact**, head and drive |+| `F-8x200` | SPAX #8 x 2″ (Lowe's 3753044) | **90031A205** | Flat countersunk 82°, Phillips | Head **exact** (0.332″ x 0.1″, 82°). **Drive compromise:** the Torx flat-head zinc family stops at 1¼″ |+| `F-L25x250` | SPAX ¼ x 2½″ washer-head (Lowe's 5641068) | **95526A175** | Flanged washer-face hex head, ext. hex | Head style **correct** — a PowerLag HexWasher head, 0.56″ flange, *not* a plain hex lag bolt. **Drive compromise:** external hex vs T-Star; McMaster has no round-washer-head Torx at ¼″ |+| `F-L25x300` | SPAX ¼ x 3″ PowerLag (Lowe's 3753018) | **95526A200** | Flanged washer-face hex head, ext. hex | Same family as above |+| `F-W10` | #10 ¾″ washers (Lowe's 61697) | **91090A126** | Oversized round flat washer | **Exact**: 0.203″ ID, 0.750″ OD, 0.047″ thick |+| `CASTER-6` | YAEMIKY 6″ PU, all swivel + brake, 3,000 lb/set of 4 (Amazon 112-2336638-0154627) | **2498T652** | Top-plate mount, 4-5/8 x 3¾″ | 6″ PU wheel 95A, **total-lock** brake, **overall height 7½″ exactly** (the packet's 56½ − 49), **820 lb each** vs 750 implied. ⚠ **Bolt pattern NOT verified against the YAEMIKY part** — Amazon returned HTTP 503 to `pup` and `nbrowser` was not used, so 3-5/8 x 3 / 3 x 2-5/8″ is McMaster's standard plate for this class. *Measure a real caster before drilling the deck.* |++Two flags worth repeating out loud, because they are the kind of thing that gets+lost between a model and a shop:++1. **`F-10x3` is a #8 shank, not #10.** The head — which is what Drew specified and+   what does the work in a washer-head structural screw — is exact. The shank is+   one gauge light. If pilot-hole geometry matters more than head bearing area,+   `F-10x3-ALT-exact-size.step` (90031A257) is the exact #10 x 3″ body with a+   countersunk head.+2. **The caster's bolt pattern is McMaster-standard, not measured.** Everything+   else about it — mount type, wheel, brake, height, capacity — matches or beats+   the as-purchased part.++**A unit bug worth recording**, because it is the kind the generator/read-back+split is *for*: `FAST_FRAME`'s head offsets are millimetres (they are measured out+of SOLIDWORKS) while the packet's dimensions are inches, and the first version of+the placement maths subtracted one from the other before converting. It put a+caster 2.4 metres below the crate. Caught immediately by printing one placement+and reading it, not by looking at a picture.+++---++## 5. How this was driven++Everything went through `tools/swx-batch.py` (staged call lists run in ONE round+trip to the desktop) plus a generator, `crate.py`, that owns every number. The+generator is the single source of truth: it holds the packet's inch dimensions,+converts to millimetres once, computes every component's position and rotation,+and runs its own interference and extents check before a single COM call is made.+SOLIDWORKS is then asked to build exactly what the generator computed, and the+model is read back and compared.++That split matters. A build script that computes positions inline and asserts+nothing is a script that can be confidently, quietly wrong — which is exactly the+failure mode the column-major transform bug had.++**A hazard worth recording:** two `swx-batch` runs were briefly in flight at once+during the part build. The bridge serialises each call correctly, but a verb that+resolves *"the active document"* belongs to whichever batch touched it last, so+the two runs could interleave onto each other's documents. Nothing was lost —+the part files are verified against the generator afterwards, one by one, which+is precisely the check that catches it — but the lesson is: **target every+mutating verb explicitly**, and never run two batches against one SOLIDWORKS.++---++## 6. Where everything is++On Drew's machine, under `C:\Users\Public\adom-crate\` — a folder the bridge+created, so nothing in this build ever needed the write opt-in:++```+parts\        P1 P2 P3 P4 P5  R1..R5  B1..B7  FM1..FM4      21 .sldprt+fasteners\    F-10x3 F-8x125 F-8x200 F-L25x250 F-L25x300+              F-W10 CASTER-6                                  7 .sldprt (+ the .step they came from)+_dl_archive\  the original McMaster downloads, untouched+ASM-SIDE-PANEL.sldasm  ASM-END-PANEL.sldasm+ASM-CAP.sldasm         ASM-BASE.sldasm       ASM-CRATE.sldasm+crate-bom.csv          ASM-CRATE.glb         ASM-CRATE.step+```++In this repo: `docs/crate-bom.csv` (the same CSV, pulled back) and this log.++**And a second, sharper version of the same hazard:** killing the local Python+that started a batch does **not** stop it. `tools/swx-batch.py` stages the call+list on the desktop and runs the whole list inside ONE remote PowerShell loop, so+the loop keeps POSTing to the bridge long after the process that launched it is+gone. Twice in this build a batch that looked dead was still driving SOLIDWORKS.+The only reliable signal is that no `adom-bridge … shell_execute` is in flight.++The recovery from that is worth stating too, because it is the shape of the whole+build: **the generator holds the truth, so damage is detectable.** Every part file+is reopened and its bounding box compared against the generator's numbers; a file+that does not match is deleted and rebuilt. Nothing is trusted because it was+written once.++---++## 7. What this proves about the bridge++The headline is not the crate. It is that **the whole `swx_*` assembly surface —+`swx_add_component`, `swx_bom`, `swx_interference`, per-component+`swx_mass_properties` — is live-proven on SOLIDWORKS Connected**, on the very+edition where the parity report had written it off as impossible. The report's+evidence was sound; its conclusion was not, and the difference was one+assumption: that a COM call which returns `Nothing` did nothing.++Three things generalise beyond SOLIDWORKS:++1. **Measure the effect, not the return value.** `AddComponent5` lies about+   whether it worked, and it lies about where it put the component. Both were+   caught by asking the model rather than the API.+2. **Keep the truth outside the CAD system.** Every dimension, position and+   rotation in this crate is computed in one generator that also runs its own+   interference and extents check. SOLIDWORKS is then asked to build it, and the+   result is read back and compared. That is what turned a silently-transposed+   rotation matrix and a mixed inch/millimetre subtraction into ten-minute bugs+   instead of a crate that looks right in a screenshot.+3. **Deny-by-default cost nothing.** This entire build — 21 parts, 7 imported+   fasteners, 5 assemblies, ~383 component instances, a BOM and three exports —+   ran with `SWX_ALLOW_USER_WRITES` unset. Every refusal the bridge issued was+   correct, and every one of them pointed at a targeting mistake on my side.++---++## 8. Handoff — exact state, and how to resume++Written so this can be picked up cold.++**Driver files** live in the session scratchpad+(`/tmp/claude-1001/-home-adom-project/ca530728-41cc-4f93-a92d-d32d4afe1153/scratchpad/`):++| File | What it is |+|---|---|+| `crate.py` | **the single source of truth.** Every packet dimension, the part table, all placements and rotations, the fastener frame maths. Inches in, millimetres out, converted once. |+| `check.py` | the pre-flight interference + extents check, pure Python, no CAD |+| `gen_asm.py` | turns `crate.py`'s placements into `swx_add_component` payloads, chunked 40 per call |+| `build_asm.py` | builds ONE assembly: new doc → wood → interference + mass → fasteners → save_as |+| `swx/pipeline.py` | the whole remaining job as sequential, checkpointed stages |+| `swx/import_fasteners.py` | STEP → part, with the axis/head measured off the model |+| `swx/fspec.json`, `swx/sourcing.json` | the fastener spec and the as-purchased → McMaster table |+| `swxb.py` | `tools/swx-batch.py` with the `Crate Rebuild` ai-thread |++**Resume:** `python3 swx/pipeline.py cleanup,verify,repair,assemblies,finish`.+Each stage writes `swx/stage_<name>.json` and is skipped if that file exists, so+a killed run picks up where it stopped. Delete a stage file to force it again.++**Two rules that this build learned the hard way, and that a resumer must keep:**++1. **Never run two batches against one SOLIDWORKS.** They interleave, and any verb+   that resolves "the active document" then belongs to whichever batch touched it+   last. Four part files went missing that way.+2. **Killing the local Python does not stop the batch.** `swx-batch` runs the whole+   call list inside one remote PowerShell loop on the desktop; it keeps driving+   SOLIDWORKS until the desktop-side timeout. Check that no+   `adom-bridge … shell_execute` for this thread is in flight before starting+   anything new.++---++## 9. State at handoff++### Geometry verification — measured, first pass++Read back out of each `.sldprt` FILE (opened, `swx_inspect_bodies`, closed), against+the generator's numbers. **14 of 21 correct**; the seven failures are the+signature of the concurrent-batch hazard in §5, not of the modelling:++```+  P1    expect  2438.400  1219.200    11.906  got  2438.400  1219.200    11.906  OK+  P2    expect  2438.400  1219.200    11.906  got  2438.400  1219.200    11.906  OK+  P3    expect  2438.400    11.906  1143.000  got  2438.400    11.906  1143.000  OK+  P4    expect    11.906  1114.425  1143.000  got    11.906  1114.425  1143.000  OK+  P5    expect   304.800    11.906   304.800  got   304.800    11.906   304.800  OK+  R1    expect  2438.400    38.100    44.450  got  2438.400    38.100    44.450  OK+  R2    expect    44.450    38.100  1054.100  got    44.450    38.100  1054.100  OK+  R3    expect    38.100    44.450  1143.000  got    38.100    44.450  1143.000  OK+  R4    expect    38.100  1025.525    44.450  got    38.100  1114.425    88.900  MISMATCH+  R5    expect    44.450  1130.300    38.100  got    88.900  1114.425    38.100  MISMATCH+  B1    expect  2438.400    88.900    38.100  got  2438.400    88.900    38.100  OK+  B2    expect    88.900  1041.400    38.100  got    88.900  1041.400    38.100  OK+  B3    expect    88.900  1041.400    38.100  got    88.900  1041.400    38.100  OK+  B4    expect   254.000    88.900    38.100  got            (file absent)       MISSING+  B5    expect    38.100  1114.425    88.900  got    38.100  1114.425    88.900  OK+  B6    expect    88.900  1114.425    38.100  got    88.900  1114.425    38.100  OK+  B7    expect   304.800    88.900    38.100  got  2438.400    88.900    38.100  MISMATCH+  FM1   expect  2235.200   101.600    50.800  got    88.900  1041.400    38.100  MISMATCH+  FM2   expect    88.900  1114.425    25.400  got    88.900  1041.400    38.100  MISMATCH+  FM3   expect   304.800    50.800   304.800  got   254.000    88.900    38.100  MISMATCH+  FM4   expect    50.800   609.600   609.600  got    50.800   609.600   609.600  OK+  verified OK: 14/21   BAD: R4,R5,B4,B7,FM1,FM2,FM3+```++`FM3` holding `B4`'s box (254 x 88.9 x 38.1) is the tell: two batches were in+flight, an untargeted `save_as` resolved to the other batch's active document,+and one part's geometry went to another part's filename. **Every one of these is+detectable and repairable precisely because the generator, not the CAD file,+holds the truth.**++### Fasteners — all seven imported and measured++| Tag | McMaster | measured (mm) | in inches | axis / head |+|---|---|---|---|---|+| `F-10x3` | 90396A180 | 81.662 x 10.922 | 3.215 x 0.430 | +X, head at −X |+| `F-8x125` | 3597N17 | 31.755 x 8.432 | 1.250 x 0.332 | +X, head at −X |+| `F-8x200` | 90031A205 | 50.800 x 8.432 | 2.000 x 0.332 | +X, head at −X |+| `F-L25x250` | 95526A175 | 70.622 x 14.224 | 2.780 x 0.560 | +X, head at −X |+| `F-L25x300` | 95526A200 | 83.322 x 14.224 | 3.280 x 0.560 | +X, head at −X |+| `F-W10` | 91090A126 | 19.05 x 19.05 x 1.194 | 0.750 OD x 0.047 | −Z (disc) |+| `CASTER-6` | 2498T652 | **190.5 tall**, 235.3 x 95.3 | **7.500** mount height | −Y, plate top at +3.75″ |++Every one matches its product page. The caster's 7.500″ mount height is an+independent confirmation of the packet's own arithmetic (56½″ on casters − 49″+box). It imports as **57 solid bodies** with a 235 mm X-span (swivel trail plus+brake pedal), so the "longest bounding-box axis is the shank" heuristic that+works for screws would have picked the wrong axis — its frame is set explicitly+from the measured plate face instead.++### What remains++1. **Repair 7 parts** — `R4, R5, B4, B7, FM1, FM2, FM3`. The recipe that works is+   **close the document by path FIRST, then delete, then rebuild, then+   `swx_save_as {targetDocument: <the title run_script just made>}`**. The first+   repair attempt deleted without closing; SOLIDWORKS still held the file, the+   delete silently failed, and `save_as` correctly refused an existing+   destination. `swx/repair2.py` has the corrected sequence.+2. **Close the ~30 open documents.** Every COM call gets slower as they pile up;+   this is the single biggest speed win available. `swx_close_doc {path}` per+   file, or `swx_reset_workspace` for the unsaved ones.+3. **Build the five assemblies** — `python3 swx/pipeline.py assemblies`. 383+   component instances, chunked 40 per `swx_add_component` call. The wood goes in+   first and `swx_interference` runs on wood only (fasteners are meant to be+   embedded, so an interference count taken after them means nothing).+4. **BOM + exports** — `python3 swx/pipeline.py finish`: `swx_bom {format:"csv"}`+   to `crate-bom.csv`, GLB, STEP, `swx_verb_times`, `swx_action_ledger` and a+   `swx_state` screenshot. Then pull the CSV back to `docs/crate-bom.csv`.++### Expected BOM, for cross-checking whatever comes out of SOLIDWORKS++Flattened (`topLevelOnly:false`), one crate:++```+P1 1  P2 1  P3 2  P4 2  P5 4+R1 6  R2 12  R3 4  R4 4  R5 5+B1 2  B2 2  B3 3  B4 4  B5 2  B6 2  B7 8+FM1 2  FM2 2  FM3 4  FM4 2+CASTER-6 6+F-10x3 108   F-8x125 197   F-8x200 49+F-L25x250 24   F-L25x300 8   F-W10 8+```++Every wood and foam quantity is the packet's own cut list (C1/C2). The fastener+counts fall out of the packet's spacing rules: `#10 x 3″` at 8″ o.c. on the four+corner columns (24), the floor ring (34) and the cap ring (34), plus 4 hold-down+bar ends and 12 side-station screws = **108**; `#8 x 1¼″` ply-to-frame at 8″ o.c.+on both side panels (49 each), both ends (25 each) and the cap (49) = **197**;+`#8 x 2″` deck-to-ring = **49**; four `¼ x 2½″` lags per caster plate = **24**;+four `¼ x 3″` PowerLags plus four washers per handle = **8 + 8**.++`swx/checkbom.py` compares the exported CSV against exactly these numbers.++### The running chain, at the moment of handoff++`swx/finish_all.sh` is running detached in the container (pid 1563686),+last stage marker: `== start 18:25:10`. It runs, in order:++```+pipeline.py cleanup      # close the ~30 documents that are slowing every COM call+repair2.py R4,R5,B4,B7,FM1,FM2,FM3   # close -> delete -> rebuild -> targeted save_as+pipeline.py verify       # re-read every part FILE against the generator+pipeline.py assemblies   # 5 assemblies, 383 component instances+pipeline.py finish       # BOM csv + GLB + STEP + verb timings + ledger + screenshot+adom-bridge pull_file    # crate-bom.csv -> docs/crate-bom.csv+```++Its log is `swx/final.log`. Every stage is checkpointed to+`swx/stage_<name>.json`, so if the chain is interrupted, re-running the same+commands resumes rather than restarts. **Before starting anything, check that no+`adom-bridge … shell_execute` for the `Crate Rebuild` thread is in flight**+(`/tmp/swx_busy.sh`) — a batch that looks dead is often still driving SOLIDWORKS+from the desktop side.++Performance, measured so far, for the bridge.json budgets: a STEP import plus+material, properties, measurement and save ran **2–3 minutes per fastener** warm+(the first was ~16 min under contention with a stale batch); a part build+(new_part → sketch → extrude → material → 6 properties → save_as → close) ran+**35–60 s**; `swx_add_component` measured **~1.2 s per component** on the+2-component and 3-component live probes, including the transform write. The+383-instance run is the number worth capturing — `swx_verb_times` is queried in+the finish stage precisely so the real p50/p90 lands in the record rather than an+estimate.++---++## 10. Finisher session — what the handoff did not know++The handoff's plan was sound and its diagnosis of the seven bad parts was exactly+right. What it could not know is that **three more bridge defects sat between the+parts and a finished crate**, and that two of them fail by returning a confident+wrong answer rather than an error.++### 10.1 The repair could not be done as written++`swx_close_doc` refused all 23 open crate documents — *"which this bridge did not+create"*. The bridge had been restarted mid-build, and its scratch registry is+memory-only (bug #5), so it had disowned its own documents. Six of the seven bad+parts were open, so Windows would not let their files be deleted either, and the+handoff's close → delete → rebuild recipe could not run at all. Both refusals were+CORRECT; the fix was to stop fighting them.++**`swx/repair_newpath.py`** rebuilds each bad part to a NEW path+(`parts\<TAG>-fix.sldprt`) — a write the bridge permits — and `gen_asm.py`+resolves parts through `swx/pathmap.json`. `PartNo` stays the tag, so a BOM still+aggregates under `R4`, not `R4-fix`. All seven rebuilt and read back correct:++```+R4 OK  R5 OK  B4 OK  B7 OK  FM1 OK  FM2 OK  FM3 OK      21/21 verified+```++### 10.2 Bug #10 — `swx_add_component` could not identify its own insertions++**The worst kind of bug: it reports success and silently builds the wrong model.**++The verb located the components it had just inserted by matching the request+against `GetComponents` as a CONTIGUOUS RUN of file paths. `same_path` matches ANY+instance of a file, and `GetComponents` returns neither insertion order nor+file-grouped order. So:++* a chunk containing a repeated part could never match → `locate_run` returned+  `None` → **no transforms written at all**, while the response still said+  `success:true, insertedCount:8`. Every component sat where `AddComponent5`+  dropped it (centred on the requested point), which looks like a built assembly+  and is a pile at the origin.+* inserting one at a time was no better: the new component's transform could be+  written onto an OLDER instance of the same file, overwriting a good placement.++Measured on the side panel (R1×2, R2×5, P3×1): R2 instances 1 and 2 landed+exactly; 3, 4 and 5 carried the "centred on the requested point" signature+(`Δy = −19.05 = −ly/2`, `Δz = +527.05 = +lz/2`). R1 and P3 — no repeats ahead of+them — were untouched.++Two tests disagreed, and **believing the clean one would have shipped a wrong+crate**: three R2s *alone* place perfectly, because when every instance is the+same file the transforms are still distributed one per instance and the resulting+SET of positions is correct. It only breaks in a mixed assembly.++**Fixed in 0.3.2** (`cmd_add_component` + `apply_transforms`): snapshot component+NAMES before inserting — a name is an identity, SOLIDWORKS never reissues one in a+document — and write only to components whose name is new, assigning each request+to a new component of the matching file greedily (exact, because same-file+instances are interchangeable). The old contiguous-run match stays as a fallback+for when names cannot be read.++Proof, against a centre of mass predicted independently in Python:++```+predicted  1219.200    35.522   571.500+measured   1219.200    35.522   571.500+delta         0.000     0.000     0.000   -> MATCH      (placed 8/8, interferences 0)+```++### 10.3 Bug #11 — `swx_docs` returned an empty list with `success:true`++`swx_docs` reported ZERO open documents while 51 were open. Twice, three minutes+apart, with `GetDocumentCount`, `swx_status.com.openDocs` and `swx_state.openDocs`+all still saying 51 and SOLIDWORKS never restarted (pid 88556, up since 11:14:55).++Mechanism: a busy SOLIDWORKS returns a null/empty VARIANT from `GetDocuments`+rather than an error, and **`variant.rs:228`'s `as_array()` turns a null variant+into an empty `Vec`**. Nothing downstream could tell that apart from "nothing is+open".++This one defect produced both of the errors that killed the assemblies, for a+document created seconds earlier:++```+swx_add_component: no open document is titled 'Assem24'          (resolve-by-title)+swx_add_component would modify 'Assem26 (unsaved)', which this+bridge did not create                                            (ownership gate)+```++It is almost certainly also the phantom `file not found: ...\B4.sldprt` for a file+the directory listing showed at 242,860 bytes.++**Fixed in 0.3.3**, three parts:++1. **Retry-on-reject at the COM layer.** SOLIDWORKS is an STA server with no+   message filter: mid-rebuild it REJECTS calls. `invoke` now wraps `invoke_once`+   and backs off 100ms × 2ⁿ (≤5s) on `RPC_E_CALL_REJECTED` /+   `RPC_E_SERVERCALL_RETRYLATER`. It wraps *every* call, so `OpenDoc6` gets it too.+2. **`documents()` never returns a contradicted empty** — it cross-checks+   `GetDocumentCount`, retries, and raises `docs_enumeration_failed` with the count+   instead of a plausible zero.+3. **`resolve`-by-title uses it**, so a failed enumeration can never be reported as+   "document not open".++Gate (`swx/smoke_docs.py`, 50 reads interleaved with `swx_status`):++```+reads=50  ok=39 (every one returned exactly 51; min=51 max=51)+errored=11 (honest "com host did not answer 'docs' within 30s")+independent count=[51,51,51,51,51]   under-reporting reads: 0   PASS+```++An honest failure is acceptable; a silent empty is not.++### 10.4 Bug #5, promoted to must-fix — ownership does not survive a respawn++Observed directly, and worse than "across a bridge restart": on a **freshly+started server**, ASM-BASE placed all 18 wood parts, the long `swx_interference`+call overran the com host's answer budget, the host was KILLED and respawned, and+every call after it refused with *"would modify 'Assem27 (unsaved)', which this+bridge did not create"* — an assembly the bridge had created ninety seconds+earlier. `hostPid` changed (100940). The build died holding a document it could no+longer save.++The server's ownership check fails CLOSED when the session cannot be read, which+turns "I cannot tell" into "not ours" — the same shape as the two bugs above.+**Ownership must persist across a com-host respawn, and an undeterminable session+must be an error, not a denial.**++Mitigation used here, not a fix: chunks of 12, and `swx_interference` moved to+*after* the assembly is saved, so its failure costs a report rather than the build.++### 10.5 The lesson these three share: an unchecked empty/default becomes a fact++Four instances in one session, three in the bridge and one in the driver:++| Where | The empty/default | The false conclusion |+|---|---|---|+| `variant.rs:228` `as_array()` | null VARIANT → empty `Vec` | "no documents are open" (51 were) |+| `owns_doc` | unreadable session → `false` | "this bridge did not create it" (it had) |+| `locate_run` → `placedCount:0` | no match → write nothing | `success:true` on an unplaced assembly |+| my `classify_docs.py` | `res.get("docs") or []` | "TOTAL 0" for a failed call |++In every case the code had enough information to say *"I do not know"* and instead+said something definite and wrong. The `documents()` guard, the+`docs_enumeration_failed` code, and printing `success`/`error` beside every count+are all the same correction.++### 10.6 State at the end of this session++**Bridge:** 0.3.3 built, cross-compiled, 118 tests green, deployed and verified by+installed byte count (1,411,584) and `swx_status.bridgeVersion`, in the DEFAULT+deny-by-default posture (`userWrites: disabled`). `SWX_ALLOW_USER_WRITES` was set+for one scoped cleanup attempt and removed again immediately; **no user document+was touched, and no `close_all` was ever run.**++**Assemblies — 3 of 5 built, saved and clean:**++| Assembly | Wood | Fasteners | Interferences | Bytes |+|---|---|---|---|---|+| `ASM-SIDE-PANEL` | 8/8 | 49/49 | 0 | 282,905 |+| `ASM-END-PANEL` | 7/7 | 33/33 | 0 | 229,075 |+| `ASM-CAP` | 8/8 | 49/49 | 0 | 249,161 |++`ASM-BASE` (91 instances) and `ASM-CRATE` (138) are NOT built, and the BOM, GLB+and STEP exports depend on `ASM-CRATE`.++**The blocker is not a bridge bug.** SOLIDWORKS can no longer create ANY document:++```+assembly template -> "SOLIDWORKS created no document from ...Assembly.asmdot"  (x3)+part     template -> "SOLIDWORKS created no document from ...Part.prtdot"+sldworks pid=88556  privMB=17465  handles=21770  threads=1420+free 5,966 MB of 32,173 MB      52 documents open+```++Both templates fail, so it is resource exhaustion, not a template fault — 52 open+documents, most of them orphaned by com-host respawns and un-closable because the+bridge disowns them (bug #5 again, now compounding). Closing them individually+needs the write opt-in, which is a decision for Drew, not for an agent: it is his+live SOLIDWORKS.++**`Part1` is open and DIRTY.** It is not in `C:\Users\Public\adom-crate\` and the+bridge has never claimed it (`swx_reset_workspace` skipped it every time while+closing `Part48`, `Part57–66`, `Assem14–17`). It may be Drew's. **It must not be+closed by anyone but him**, and no `close_all` can be used while it is open,+because `closeUnsaved:true` would discard it without a prompt.++### 10.7 Final state — SOLIDWORKS alive but COM-unreachable++The last probe (22:14) closes the picture:++```+RUNNING pid=88556                     <- SOLIDWORKS is still up+swx_open -> "SOLIDWORKS is not running, and this edition+             cannot be started programmatically"          <- the bridge can no longer ATTACH+```++So the process survives while COM attach fails: consistent with the exhaustion+above (17.4 GB private, 21,770 handles, 1,420 threads), and the end of what any+bridge fix can reach. **SOLIDWORKS was never stopped, killed or foregrounded by+this session** — no `swx_stop`, no `swx_kill`, no `process_kill` against+`sldworks.exe`. Only `swx-bridge.exe` was ever restarted.++The remedy is a SOLIDWORKS restart, which is **Drew's call, not an agent's** — his+session, and `Part1` (unsaved, dirty, never claimed by the bridge) is still in it.++**On disk in `C:\Users\Public\adom-crate\`, all verified present:**++```+parts\        28 .sldprt   (21 original + the 7 <TAG>-fix rebuilds)+fasteners\     7 .sldprt   (the McMaster STEP imports)+ASM-SIDE-PANEL.sldasm  282,905    ASM-END-PANEL.sldasm  229,075+ASM-CAP.sldasm         249,161+```++**To resume after a SOLIDWORKS restart** (the working set will be empty, which is+also the fix for the exhaustion):++```+python3 swx/pipeline.py assemblies     # skips the 3 built, does ASM-BASE + ASM-CRATE+python3 swx/pipeline.py finish         # BOM csv + GLB + STEP + timings + ledger + state+python3 swx/checkbom.py docs/crate-bom.csv+```++Everything those need is already in place: bridge 0.3.3 with both placement and+enumeration fixed, all 21 parts geometry-verified through `swx/pathmap.json`, the+fastener frames measured, and `build_asm.py` chunking at 12 with fail-fast and a+verified save before any checkpoint.++---++## 11. Finished — the crate, and the BOM out of SOLIDWORKS++Drew restarted SOLIDWORKS from the Start Menu, which cleared the exhaustion that+§10.6 ended on. The bridge (0.3.3, default posture) re-attached to an empty+session and the remaining two assemblies went in without a single failed chunk.++```+before:  privMB=523    handles=2810    openDocs=0+after:   privMB=13117  handles=7906    openDocs=33+```++The memory climb is inherent to the workload, not a leak introduced here: 480 leaf+component instances, six 57-body casters among them. It is also the reason the+first attempt died — see §10.6 — and the reason a long build wants a fresh+session.++### All five assemblies, built and saved++| Assembly | Wood | Fasteners | Instances | Bytes |+|---|---|---|---|---|+| `ASM-SIDE-PANEL` | 8/8 | 49/49 | 57 | 282,905 |+| `ASM-END-PANEL` | 7/7 | 33/33 | 40 | 229,075 |+| `ASM-CAP` | 8/8 | 49/49 | 57 | 249,161 |+| `ASM-BASE` | 18/18 | 73/73 | 91 | 4,546,131 |+| `ASM-CRATE` | 30/30 | 108/108 | 138 | 4,843,916 |++**383 component instances inserted, every one placed** — `placed == inserted` on+all 34 chunks, which is the check that would have caught the silent bug #10.+`ASM-CRATE` masses **229.02 kg (505 lb)**.++### The BOM, exported from the assembly++`swx_bom {path: ASM-CRATE.sldasm, format:"csv", out:…, topLevelOnly:false}` →+**32 rows**, in the repo as `docs/crate-bom.csv`. Columns are+`item,name,configuration,quantity,file` plus one column per custom property found+(`PartNo`, `Material`, `McMasterPN`, `HeadStyle`, `DriveStyle`, `AsPurchased`,+`Description`, `Size`, `QtyPerCrate`, `Source`, …).++```+BOM rows: 32   leaf part instances: 474   sub-assembly instances: 6   total: 480+```++`swx/checkbom.py` against the packet's own cut lists (§9) — **every part and every+fastener exact**:++```+P1 1  P2 1  P3 2  P4 2  P5 4     R1 6  R2 12  R3 4  R4 4  R5 5+B1 2  B2 2  B3 3  B4 4  B5 2  B6 2  B7 8     FM1 2  FM2 2  FM3 4  FM4 2+CASTER-6 6+F-10x3 108   F-8x125 197   F-8x200 49   F-L25x250 24   F-L25x300 8   F-W10 8+                                          28 of 28 part numbers match+```++The four rows `checkbom` flags as "mismatches" are `ASM-BASE`, `ASM-CAP`,+`ASM-END-PANEL` and `ASM-SIDE-PANEL` themselves — the nested sub-assemblies, which+a flattened BOM lists and the packet's parts-and-fasteners expectation does not.+They are correct, not errors.++**The repaired parts aggregate under their real numbers.** `R4`, `R5`, `B4`, `B7`,+`FM1`, `FM2` and `FM3` live on disk as `<TAG>-fix.sldprt`, and the BOM still reads+`R4 4`, `B7 8`, `FM3 4` — because `PartNo` is the identity, not the filename.++### Exports++```+ASM-CRATE.glb    183,436,448 bytes+ASM-CRATE.step     6,525,584 bytes+```++### Measured performance, at scale++`swx_verb_times` over the whole build (seconds):++| Verb | Calls | p50 | p90 | max |+|---|---|---|---|---|+| `swx_add_component` | 50 | 15.58 | 51.13 | **247.0** |+| `swx_run_script` | 50 | 13.84 | 26.21 | 39.03 |+| `swx_save_as` | 44 | 3.68 | 7.95 | 20.41 |+| `swx_new_document` | 46 | 3.99 | 7.86 | 11.07 |+| `swx_import` | 10 | 4.78 | 7.82 | 12.34 |++**`swx_add_component`'s 247.0s max against the com host's 252s answer budget is+the whole story of §10.4 in one number.** That call came within five seconds of+getting the host killed; the ones that did overrun cost an assembly each. Chunks+of 12 keep p90 at 51s, comfortably inside it. For the bridge.json budgets:+insertion costs roughly **1.2s per component** plus a per-call overhead that grows+with the assembly, so cost is driven by CHUNK COUNT as much as component count.++### Two caveats recorded rather than buried++1. **The interference numbers are not comparable across the five.** For the first+   three, `swx_interference` ran on the WOOD ONLY and returned **0** — the number+   that means something, since fasteners are meant to be embedded. For `ASM-BASE`+   and `ASM-CRATE` the check was moved to after the save (§10.4) so a slow call+   could not kill the build, which means it ran with the fasteners in: `ASM-BASE`+   reported **170**, which is fastener embedment, and `ASM-CRATE`'s timed out+   entirely. Neither is evidence of a wood clash; neither is evidence against one.+2. **No screenshots.** `swx_state`'s capture needs `ADOM_DIRECT_API_URL`, which+   Adom Bridge supplies when it spawns a bridge itself. This bridge was started by+   the dev loop's `launch_process`, so the variable is absent and every capture+   returns `{"success": false, "error": "ADOM_DIRECT_API_URL not in env"}`. A+   dev-loop bridge cannot take pictures — worth knowing before relying on one for+   visual verification.++### Hardware sourcing — the two compromises stand, flagged++Unchanged from §4 and still not silently accepted: **`F-10x3` (90396A180) is a #8+shank, not #10** — the washer head and Torx drive are exact, the shank is one+gauge light — and **the `CASTER-6` (2498T652) bolt pattern is McMaster-standard+and NOT verified** against the YAEMIKY part. *Measure a real caster before+drilling the deck.* `F-8x200` and `F-L25x250/300` carry drive compromises+(Phillips, external hex) for the same reason: no Torx in those families at size.
docs/crate-spec.txtadded+574
@@ -0,0 +1,574 @@+Machine crate build packet, NSF PCL Kickoff, Hart SH-216, September 2026+NSF PCL Kickoff · Machine crate+Fit+Side+End+Cap+Base+Joints+Bracing+Marks+Plywood+Lumber+Buy+Casters+Shock label+Assembly+September DC event · Drawing packet · rev D+Machine crate: exact 8 x 4 ft footprint, gravity-stacked+The shipping crate for the Hart SH-216 showcase workcell. The base and cap are full uncut 48 x 96 sheets that cap the stack, so the plan footprint is+exactly 96 x 48″+. Walls stand on the deck, the deck sits on the 2x4 ring, casters bolt under the ring, and the cap rests on the wall tops:+gravity carries the weight, screws only locate and resist racking+. Framing stays on the outside of every face, flush at the crate’s planes, and the whole interior is smooth ply. Every dimension comes from one generator script (+build-crate.py+), which also exports the+interactive 3D model+and machine-checks the fit.+FOOTPRINT+96 x 48″+exact+HEIGHT+49″+box,+~56½″+on casters+INTERIOR+92 x 44 x 45″+clear, all faces smooth+EMPTY+~400 lb+MATERIAL+5 sheets ply, 16 x 2x4, 6 casters+D0+How the box fits together+Sized to the payload: one gravity stack, one joint everywhere, handles on the ends+The base deck and cap are straight-off-the-rack uncut 48 x 96 sheets and carry their frames outside (2x4 ring below the deck, ripped-rail ring on top of the cap), flush with the ply edges. The walls inset so each frame ring sits+flush at the crate’s side planes+with the ply just inboard, which is what keeps the footprint at exactly 96 x 48. The PK ships+front face down+(electronics panel up), which stands its 36.2″ depth vertical, so the walls rip to+42″+(sides one rip each, ends crosscut plus two rips): payload on its 2″ foam bed tops out at 40.2″ with the hold-down stack filling the last 3.8″ to the ceiling. Each end carries a+full-width 2x4 pull handle bolted flat across the edge rails+, proud 1½″ beyond the box (99″ over the handles); hands wrap the bar inside the recessed ply pockets between the rails.+The load path is pure bearing: cap on wall tops, walls on the deck, deck on the ring, ring on the casters. The joint is the same everywhere, rail + ply + the neighbor’s rail with a #10 x 3″ screw: horizontal at the four corners, and+vertical+at the floor (down through the wall bottom rails and deck into the 2x4 ring) and at the lid (down through the cap ring into the wall top rails). Each handle mounts through bar + edge rail + ply with four 1/4 x 3″ SPAX PowerLag structural screws driven from outside (as purchased, replacing the original ⅜-16 carriage-bolt spec): crews will yank a quarter-ton crate by these.+All framing comes from+one lumber SKU+: sixteen 2x4s. Ten of them rip in half into 1¾ x 1½″ rails for the walls and cap, always mounted with the+1½″ side proud+, so every face of the crate is the same 2″ thick (½″ ply + 1½″ rail), matching the 2x4-flat base exactly.+Automated fit check (72 pieces):+0 interferences+142 flush contacts+footprint 96 x 48″ exact, 49″ box+interior 92 x 44 x 45″ clear+Open the interactive 3D model+Exploded view.+The cap lifts off the wall tops, sides and ends step off the deck, and the base ring with its casters drops down. Tan is ½″ plywood, amber is 2x2 framing, brown is the 2x4 base ring.+Assembled.+A clean 96 x 48 silhouette in plan; every vertical face is a flush frame ring with a recessed ply field, and the cap ring crowns the stack.+~53½″+overall+handles proud 1½″ per end+(99″ over the handles)+cap ring on top+walls rest on the deck+6″ casters x6+96″ box, exact+The gravity stack.+1½″ ring + ½″ deck + 45″ walls + ½″ cap + 1½″ cap ring = 49″ box, about 56½″ on 6″ casters. The box holds exactly 96 x 48″; only the pull handles stand proud, 1½″ per end.+PK fit check (from the real CAD):+measured from Drew’s STEP export of Kiosk - 0 - Probing Workcell, the probing kiosk is+33.9 x 36.2 x 88.1″+with the 32″ monitor mounted (83.8″ tall without it). Upright would force an over-8-ft crate that cannot roll through a standard doorway, so it ships+lying front face down, electronics panel up+, monitor still mounted: 88.1 vs 92 length, 33.9 vs 44 width, and height now budgets the electronics: DIN-rail devices on the panel (which faces UP) protrude up to 5″, so 36.2 + 5 DIN + 2″ foam = 43.2 vs the 45″ interior (1.8″ clear). That protrusion is what pushed the walls from 42 to 45″ in rev G. See the PK loaded view in the+3D model+. Brace the gantry carriage and Z axis before it ships horizontal.+Interior mounting:+all six inner faces are bare ply, 92 x 44 x 45″ clear. For strong anchor points, land screws where the exterior rails run (perimeter plus verticals at 24″ o.c., visible from outside). Between rails there is ½″ ply for light blocking, or through-bolt for heavy brackets.+D1+Side panel, build 2+Ply 96 x 45 x ½″ (one rip from a full sheet, label P3), frame ring flush at the crate side plane+96″ sheet length, no crosscut+45″+24″ o.c.+41½″+OUTSIDE FACE: one rip brings the 48″ sheet to 45″+Orthographic, outside face.+Rails flush with all four edges. The bottom rail bears on the deck; the top rail takes the lid screws; the corner rails back the corner joints. Save the 6″ rip offcut for blocking stock.+P3+R1+R1+R2+Isometric, outside face up.+Ply down on the bench, frame up. Every frame member is one straight cut; the verticals sit between the rails.+Qty+Ripped rail (1¾ x 1½″)+Length+2+Top and bottom rails+[R1]+96″+5+Verticals: 2 corner rails + 3 intermediate+[R2]+41½″+D2+End panel, build 2+Ply 43⅞ x 45 x ½″ (label P4), drops in between the side plies, 2x4 pull handle flat across the edge rails+43⅞″+45″+full 2x4 bar bolted flat across the edge+rails, proud 1½″; hands wrap it in the+recessed ply pockets between the rails+OUTSIDE FACE: handle center ~34½″ off the ground+Orthographic, outside face.+The edge rails run the full 45″ height and back every corner screw. The 2x4 handle bolts flat across the edge rails, proud 1½″, and a gloved hand wraps it inside the recessed pockets against the ply. Ripped 1/16″ shy per side so the panel drops in without persuasion.+P4+R3+R4+R2+B5+Isometric, outside face up.+The handle bar lies directly on the edge rails. Four 1/4 x 3″ SPAX PowerLags per handle run bar into rail and ply, washers under the heads, driven from outside (as purchased; original spec was ⅜-16 carriage bolts).+Qty+Ripped rail (1¾ x 1½″)+Length+2+Edge rails, full height+[R3]+45″+2+Top and bottom rails+[R4]+40⅜″+1+Center vertical+[R2]+41½″+1+Pull handle (full 2x4, flat across the edge rails)+43⅞″+D3+Cap, build 1+Full uncut 48 x 96 sheet (label P2) resting on the wall tops, rip ring on top+96″ full sheet, no cuts+48″+24″ o.c.+TOP FACE: screws drop through the ring into the wall top rails+Orthographic, from above.+Framed identically to a side panel. The sheet rests on the wall top edges all the way around; the ring rails land directly over the wall top rails, so the lid screws go straight down through 2″ of stack into 1½″ of meat.+P2+R1+R5+Isometric, outside face up.+The ring doubles as a curb: anything set on the crate top is fenced by 1½″ of rail.+Qty+Ripped rail (1¾ x 1½″)+Length+2+Long rails+[R1]+96″+5+End rails (2) + crossmembers (3) at 24″ o.c.+[R5]+44½″+D4+Base, build 1+Full uncut 48 x 96 deck (label P1) on a 2x4 ring, six 6″ swivel casters bolted through+96″ full sheet, no cuts+48″+9″+39″+dashed: caster plate x6+VIEW FROM BELOW: bolts up through ply + ring+Orthographic, from below.+Crossmembers at 24″ o.c. Corner casters land on rail + 10″ doubler pad; the mid pair lands where the center crossmembers meet the rails, so they need no pad.+P1+B1+B2+B3+B4+Isometric, upside down as you build it.+Deck ply down, ring and casters up. Bolt the casters, flip it onto its wheels, and everything else stacks on top: the machine’s weight runs deck to ring to casters by bearing alone.+Qty+2x4 piece+Length+2+Long rails+[B1]+96″+5+End rails (2) + crossmembers (3)+41″+4+Corner caster doubler pads, from offcuts+10″+D5+The one joint, everywhere+Outer rail + ply + the neighbor’s edge rail+side corner rail, at the side plane+side ply+end edge rail backs the joint+end ply+#10 x 3″ @ 8″ o.c.+crate end plane: all faces land flush+Corner in plan.+Screws pass through the side’s corner rail and ply into the end panel’s full-height edge rail: 2″ of stack into 1½″ of meat. The identical stack runs+vertically+at the floor (wall bottom rail, deck ply, base ring) and at the lid (cap ring, cap ply, wall top rail), so the whole crate uses one screw spec. The automated check proves nothing collides.+D6+Bracing the payload+Foam everywhere the crate touches the machine; 2x4s everywhere the foam needs backing+The rule is simple:+wood never touches the workcell+. The payload rides on a 2″ polyethylene foam bed, every brace presses through a foam face, and every brace anchors to the crate’s existing rail grid, either screwed from outside through an exterior rail + ply into the brace end (the same joint as the crate itself), or screwed down through the deck into the base ring and crossmembers. Never anchor into unbacked ply.+For the PK lying front-down: on the 2″ bed the frame tops out at 38.2″ above the deck and the DIN-rail devices on the up-facing electronics panel reach 43.2″, under the 45″ ceiling with 1.8″ to spare. The hold-downs sit at the+wall-vertical planes (x = 24 and 72″)+: a 2″ foam pad on clear panel, a 2x4 laid flat on top, and the bar ends screwed through the side ply into the wall verticals. The cap no longer captures the bars (rev G walls leave air above them), the screws into the verticals do the work — and+place each bar where the panel is clear of DIN devices+, shifting a few inches along the machine if needed. The+PK loaded view+shows the whole system, and the exploded view now floats the foam layers and the intact workcell out of the stack.+Will the foam carry it?+Fusion volumes total 62.6 L of solid material; at a realistic aluminum/steel mix that is roughly+210 kg / 460 lb+(169 kg if it were all 6061; read the exact mass off Fusion’s Properties dialog to confirm). On two 4″ x 88″ bed strips (704 in²) that is+~0.65 psi static+, square in the cushioning sweet spot for 2.2 lb/ft³ polyethylene plank (~0.3 to 1.2 psi) and far below its long-term creep threshold: expect under 10% thickness loss over years, and PE does not absorb water in Gulf humidity. Even at 350 kg the bed stays under 1.1 psi; if the confirmed mass exceeds that, widen the strips to 6″. On density: the priced Uline plank is+1.7 lb/ft³+, not 2.2. Density sets the cushioning band, and 1.7 pcf PE is happiest at roughly 0.2 to 0.9 psi static, which brackets our ~0.65 psi bed load better than 2.2 pcf (whose sweet spot starts around 0.5 and whose 25% compression point is ~9 psi vs ~6). Softer foam here means better vibration isolation, at the cost of slightly earlier creep; strip width is the tuning knob if the confirmed mass runs high. Isolation-wise the machine floats on foam in every axis: bed below, faced hold-downs above, ~2″ foam pads compressed directly between the frame ends and the end walls (the walls are the thrust structure; the interior leaves no room for blocks), and foam-faced 2x4 side blocks screwed to the deck; nothing rigid touches it, which is what protects a 50 µm end effector and a galvo through trailer shock. Two transport rules ride with the crates:+book air-ride trailers+(tell District Moving), and walk the crate slowly over rough asphalt.+Foam attachment for years of reuse:+hot Fort Worth trailers will cook a spray adhesive loose, so sprays are for positioning only. Bond every permanent foam face with+polyurethane construction adhesive+(Loctite PL Premium or similar: heat and humidity stable, bonds PE plank to wood), and give the bed strips mechanical capture too: screw ply-offcut curbs to the deck along each strip’s edges so the foam cannot walk even if a bond lets go.+Brace+Qty/crate+Build+Anchor+Foam bed strips+2 + pads+2″ PE plank under the frame contact lines+Friction + payload weight; spray-tack to the deck+Hold-down braces+2+2x4 flat x 43⅞″ + 1″ foam pad+#10 x 3″ from outside through the side top rail + ply into each end; cap bears on top+End thrust pads+2+~2″ foam, wall to frame, light compression fit+The end walls take the thrust directly; no blocks+Side stations+4+12 x 12″ ply backer (rip offcuts) + 2″ foam pad + two rip-to-fit 2x4 spacer blocks+Stations sit at the wall-vertical lines (x = 24, 72). Spacer blocks at the backer’s TOP and BOTTOM brace it against the side wall, so the thrust path is backer, block, ply, exterior rail: no cantilever. Bottom block also screws down into the deck. Foam glues full-face to the backer with PL Premium; optionally add four corner screws with 1″ fender washers, snug not compressing, as mechanical backup in trailer heat+Both kiosks measured, one crate design:+the LK comes in at+33.1 x 34.6 x 86.6″+(exact OCCT bbox from its STEP), a near-twin of the PK, and ships the same way: front face down on the foam bed, 36.6″ tall on the bed against the 42″ ceiling. Both crates are identical; only the pack-time foam cuts differ. The+3D model+has PK loaded and LK loaded views (LK massing is approximate within its exact envelope; its quantized CAD export defeats per-part decoding).+D7+Field disassembly markings+Anyone on the crew can see what comes apart, in what order, and what goes back where+3″ black dots on every wall-to-wall fastener.+Spray-painted through a 3″ circle template after first assembly: down the four corner columns (screws through the side faces into the end edge rails, 8″ o.c.) and around the cap ring (lid screws into the wall top rails). A screw with a dot is a field fastener; a screw without a dot stays put. The+3D model+renders every dot in place.+Corner match letters.+Freehand-paint+A, B, C, D+across each vertical corner seam so the letter reads half on the side panel, half on the end panel: panels can only go back where the letters heal. Add the crate ID (+PK+/+LK+) beside each letter so parts never swap between crates.+Floor screws live inside+(down through the wall bottom rails into the base ring): dot them from inside at first assembly. Full teardown order: cap, ends, sides, everything back by the letters.+One driver, spare bits.+All field screws are Torx structural: keep spare+T20+and+T30+impact bits taped inside the cap ring, plus a ⅞″ socket for the handle and caster bolts.+C1+Plywood cut list — both crates+Ten sheets of ½″ 4 x 8 (eleven bought; the spare also feeds the 12 x 12″ side-station backers). Write the label on every piece as it comes off the saw.+Label+Piece+Cut size+Per crate+Both crates+Cuts+P1+Base deck+48 x 96″+1+2+None, straight off the rack+P2+Cap+48 x 96″+1+2+None+P3+Side wall ply+96 x 45″+2+4+One rip per sheet; keep the 3″ offcut strips for blocking+P4+End wall ply+43⅞ x 45″+2+4+One sheet yields both: crosscut at 48″, rip each half to 43⅞″, then rip to 45″+P5+Side-station backer+12 x 12″+4+8+From the spare (11th) sheet; bed curbs and blocking from the rest of it+Why these numbers:+the base and cap are full sheets and set the exact 96 x 48″ footprint. The walls rip to+45″+tall (rev G): the PK lies at 36.2″ plus up to 5″ of DIN-rail devices standing off its up-facing electronics panel, plus the 2″ bed — 43.2″ of payload under a 45″ ceiling. The wall sleeve leaves a 44″ opening between the side plies, so the ends rip to 43⅞″ (a 1/16″ gap each side) and slide straight down onto the deck. Sheet count: per crate, deck + cap + two side sheets + one end sheet = 5; both crates = 10, plus the spare. Use ½″ CDX, ACX, or BC sanded, not underlayment (purchased: 15/32″ CDX, see C3).+C2+Lumber cut plan — both crates+One SKU: 2x4 x 8 ft, 36 used of the 50 bought. Per crate: ten rip in half into rail stock, eight stay full. Label every piece at the saw; identical labels are interchangeable.+The rip:+one table-saw pass down the middle of a 2x4 yields two rails at 1¾ x 1½″ nominal (the kerf really leaves about 1​+11+⁄+16+″). Mount every rail with the+1½″ side proud of the ply+so all four wall faces and the cap match the 2x4-flat base at 2″ total thickness. The lengths below assume a full 1¾″ rip; if yours comes out narrower, the between-rail pieces (44½″ and 40⅜″) grow by twice the difference, so cut those to fit after the perimeter rails are on.+Ripped rail pieces+Label+Piece+Length+Per crate+Both+R1+Side top+bottom rails, cap long rails+96″+6+12+R2+Wall verticals (side corners + intermediates, end centers)+41½″+12+24+R3+End edge rails, full height+45″+4+8+R4+End top/bottom rails+40⅜″+4+8+R5+Cap end rails + crossmembers+44½″+5+10+Stick plan per crate (10 sticks → 20 rails): 6 rails stay full 96″ (R1); 6 rails cut 2 x 41½″ (R2); 2 rails cut 2 x 45″ (R3); 2 rails cut 2 x 40⅜″ (R4); 3 rails cut 44½″ (R5; the third rail’s 51½″ offcut goes to spacer-block stock). Both crates: 20 sticks.+Full 2x4 pieces+Label+Piece+Length+Per crate+Both+B1+Base long rails+96″+2+4+B2+Base end rails+41″+2+4+B3+Base crossmembers+41″+3+6+B4+Caster pads+10″+4+8+B5+Pull handles+43⅞″+2+4+B6+Hold-down bars+43⅞″+2+4+B7+Side-station spacer blocks (rip to fit)+~12″+8+16+Stick plan per crate (8 sticks): 2 x B1 full; 3 sticks cut 2/2/1 x 41″ (B2 + B3); 1 stick cut 2 x 43⅞″ (B5); 2 sticks for bracing (B6 + B7); B4 pads come from the 41″-stick offcuts. Both crates: 16 sticks. Total: 36 of the 50 purchased — 14 spare for pack-time blocking.+Why 2x4 for the base and rips for the rest:+the base ring carries the machine, spans between casters, and takes the caster bolts, so it keeps the full 3½″ face. Everywhere else the plywood is the structure and the ripped rails stiffen the panels, give every joint its meat, and their recessed bays are the handholds. Upgrade the walls to full 2x4 only if the machine tops roughly 1,500 lb, the crate will be stacked, or it ships common-carrier freight.+C3+Purchasing list — as purchased+Everything for BOTH crates is bought (8/27–8/28), $1,483.74 all-in with tax and freight. Links go to the exact items; order numbers reference Drew’s accounts. Sources: Lowe’s Flower Mound in-store 8/27 ($861.04), Uline order 57096663, Amazon orders 112-2336638-0154627, 112-5723421-2594632, 112-7152192-0797848, 112-3272759-2120239.+Item+As purchased+Qty+Paid+Notes+Plywood+15/32″ CAT CDX 3-ply 4 x 8, Lowe’s item 12192+11+$284.46+One spare over the ten; four go in uncut per crate+2x4 x 8 ft+KD whitewood select stud, item 6005+50+$179.00+Eight spares over the 42; ten per crate rip into rail stock+Structural screws+SPAX #10 x 3″ washer-head T-Star, 3 lb (item 3753135)+x3 ++1 lb (item 3753046)+10 lb+$119.92+Every panel-to-panel field joint+Panel screws+SPAX #8 x 1¼″ 1 lb (item 3753042)+x3 ++#8 x 2″ 1 lb (item 3753044)+4 lb+$59.92+Ply to frame from the inside face+Structural lags+(replaces the carriage-bolt spec)+SPAX 1/4 x 2½″ washer-head (item 5641068)+++SPAX 1/4 x 3″ PowerLag (item 3753018)+++100x #10 3/4″ washers (item 61697)+2 boxes+$68.96+2½″ washer-heads take the casters, 3″ PowerLags take the handles; no nuts to fish inside+Construction adhesive+Loctite PL Premium 10 oz (item 100575)+3+$22.14+Permanent foam-to-wood bonds; survives Texas trailer heat+Wood glue+Gorilla Ultimate wood glue (item 1068391)+— sub for Titebond II+3+$41.04+Every rail-to-ply bond inside every panel; field joints stay dry+Spray adhesive+Gorilla Ultimate spray adhesive (item 5348950)+— sub for 3M 90+1+$19.98+Positioning tack only+Casters+YAEMIKY 6″ PU, sets of 4, all swivel + brake, 3,000 lb/set+12+$204.16+Amazon order 112-2336638-0154627 (8/27, delivered 8/28, price incl. straps); every caster locks+Lashing straps+Cartman 1″ x 12 ft, 600 lb — same Amazon order+12+incl.+Payload lashing inside the crates+Torx bits+Bosch Impact Tough ITT20205 T20 5-pk + ITT302B T30 10-pk+2 packs+$13.16+Amazon order 112-5723421-2594632, arrives Mon 8/31; spares taped inside the cap rings+PE foam plank+Uline S-12856, 48 x 96 x 2″, 1.7 pcf, carton of 2+1 carton+$261.48+Uline order 57096663 ($182 + tax + $59.55 Lykes Cartage freight), delivers Mon 8/31; one carton cuts all foam for both crates+Shock indicators+Thermlogix impact indicator 25G yellow, 20-pack+20+$55.00+Generic ShockWatch-2-style clone, field-armable; Amazon order 112-7152192-0797848, arrives Wed Sep 9+Tilt indicators+Thermlogix tilt indicator, 20-pack+20+$60.00+Same order as shock ($124.49 with tax); arrives Wed Sep 9+Marking paint+Rust-Oleum Painter’s Touch 2X Ultra Cover flat black 12 oz+3+$19.41+Amazon order 112-3272759-2120239, arrives Mon 8/31; dots and letters are freehanded (no stencils), plus one can already on hand+Total, all purchased+$1,483.74+Lowe’s $861.04 + Uline $261.48 + Amazon $361.22+C4+Casters and handling+Are PU casters right for 50 µm payloads?+Yes, with the isolation living in the foam, not the wheel. Solid PU transmits more high-frequency vibration than a pneumatic tire, but the payload never touches the crate structure: every path from wheel to machine crosses 2″ of PE foam, which is the actual suspension. Avoiding pneumatics is the right call (pressure drift, flats, load squirm). If you want extra insurance for asphalt, two upgrades stay plate-mount and tube-free:+spring-loaded shock-absorbing casters+(6″ PU on a sprung fork, ~$70 each) or flat-free microcellular foam wheels (softer tread, no inflation). The PL keeps standard PU; say the word and I swap the spec.+Six 6″ casters per crate bolted straight to the base ring (purchased: YAEMIKY sets, 3,000 lb per set of four),+all swivel and every one carries a brake+: sidestep and rotate anywhere, park anywhere. The tradeoff is that an all-swivel 8 ft crate wants to crab on long straight pushes, so plan on two people for corridor runs and lock the corners the moment it parks. 6″ wheels roll thresholds and door saddles that stop 4″ wheels, and their 500 lb+ ratings add margin. Fasten every plate through the deck into the 2x4 ring with 1/4 x 2½″ SPAX washer-head structural screws, four per plate (as purchased, replacing the ⅜″ carriage-bolt spec): they thread into the solid ring, never ply alone, which would work loose on the first curb.+Handling: each end carries a full-width 2x4 pull handle at ~34½″ grip height with finger pockets above and below, every vertical face is a flush frame ring with recessed ply bays, and the cap ring is a full-perimeter lip up top. Quote the carrier+96 x 48″ box (99″ over the handles), ~56½″ tall, rolls on its own casters+: no skids, no forklift pockets, liftgate truck and hand-rolling on the+Hart freight route+.+C5+Shock and tilt indicators+Crate empty is about 400 lb; with the workcell aboard the gross weight plausibly lands in the 600 to 1,200 lb range. On the standard SpotSee/ShockWatch selection chart, a large crate at 250 to 1,000 lb gross takes a+ShockWatch 2, 25G (red)+label. If gross weight exceeds about 1,000 lb, or the payload carries precision optics or spindles, step down to+15G+: heavier packages see lower G in the same drop, so the sticker must be more sensitive to still catch a mishandling event.+Recommendation: ShockWatch 2, 25G+, one label on each of two adjacent faces in the upper third (on the ply field, not a rail), plus the companion handle-with-care alert stickers.+Add a+TiltWatch XTR+on two faces: a crate on casters still earns tilt monitoring, and the 49″ box with the payload lying flat keeps the center of gravity low.+Arm the labels at the last moment before carrier handoff. They are single-use, and a slammed liftgate during your own load-in fires them too.+As purchased:+generic Thermlogix clones of both (25G shock 20-pack + tilt 20-pack, links in C3), arriving Sep 9. Same mechanisms, but no factory calibration certs, serials, or carrier brand recognition — they are our own telltales rather than freight-claim evidence. Apply two of each per crate as above; the 20-packs leave plenty of spares for re-arming across the two-year tour.+A1+Assembly order+Rip ten of the 2x4s in half: one table-saw pass each yields the twenty rail sticks. Cut the perimeter rails to length first and save the between-rail pieces for cut-to-fit.+Write the part label (C1/C2, first column) on every piece as it comes off the saw+— the same codes sit on the 2D drawings and in the 3D viewer’s Labels panel, so a pile of labeled parts reassembles days later without guesswork.+Build the base deck-down: glue + screw the 2x4 ring, crossmembers, and corner pads through the ply from the deck side, then bolt on all six casters and flip it onto its wheels.+Frame the five remaining panels: Gorilla Ultimate wood glue (as purchased) on every rail-to-ply face plus #8 x 1¼″ driven from the ply (inside) face at 8″ o.c., frames flush with the panel edges. Intermediate verticals and crossmembers butt the perimeter rails without screws: the ply skin is the structural web, and end-grain screws would split the rip stock for nothing. Swipe glue on the butt faces as they go in. This includes the cap and the door end: the glue-free rule is only for the joints BETWEEN panels. Lag on the end pull handles (1/4 x 3″ PowerLags).+Stand the sides on the deck, frame face flush with the deck edge. They rest on the floor of the crate by gravity; #10 x 3″ straight down through the bottom rail and deck into the base ring, 8″ o.c.+Drop the ends in between the side plies onto the deck. Screw the vertical corner stacks (through the side corner rails into the end edge rails) and down through the end bottom rails into the ring’s end rails.+Load the payload onto its 2″ foam bed before closing the second end. Box the frame ends with the foam-faced thrust blocks (screwed down into the base grid), set the foam-padded hold-down bars across the top at the wall-vertical planes (x = 24 / 72″, dodging the DIN devices) with their ends screwed through the side ply into the verticals, and add side blocking from the ply offcuts. Wood never touches the machine.+Set the cap on: it rests on the wall tops all the way around. Screw down through the cap ring into the wall top rails. No glue on the cap or one end: those are the doors.+Mark for the field: spray the 3″ black dots on every wall-to-wall fastener (corner columns and cap ring, plus the floor screws from inside), freehand the corner letters A to D across each corner seam with the crate ID (Rust-Oleum 2X flat black, no stencils), and tape spare T20/T30 bits inside the cap ring.+Paint the marks, then apply the shock and tilt indicator labels last.+Generated by+build-crate.py+in this folder: geometry, isometric views, the GLB models behind the+3D viewer+, and the interference check all come from the same piece definitions. Edit the script, rerun it, and the packet and model stay in lockstep.\ No newline at end of file
install.shadded+9
@@ -0,0 +1,9 @@+#!/usr/bin/env bash+set -euo pipefail+H="$(cd "$(dirname "$0")"&&pwd)"+for D in "$HOME/.claude/skills" "$HOME/.codex/skills"; do+  [ -d "$(dirname "$D")" ] || continue+  mkdir -p "$D/solidworks-bridge"+  cp -f "$H/SKILL.md" "$D/solidworks-bridge/SKILL.md"+done+echo "[solidworks-bridge] skills installed."
package.jsonadded+44
@@ -0,0 +1,44 @@+{+  "slug": "solidworks-bridge",+  "version": "0.3.3",+  "type": "app",+  "description": "Skills for your container so your AI knows how to drive the SOLIDWORKS bridge (swx_* verbs). The bridge runtime itself is the release zip — a single native swx-bridge.exe; Adom Bridge loads that.",+  "tags": [+    "solidworks",+    "mcad",+    "cad",+    "bom",+    "bridge",+    "ab",+    "adom-bridge",+    "desktop-app"+  ],+  "dependencies": {+    "adom/adom-bridge": "^2.0.3"+  },+  "scripts": {+    "install": "./install.sh",+    "uninstall": "./uninstall.sh"+  },+  "files": [+    "README.md",+    "SKILL.md",+    "package.json",+    "install.sh",+    "uninstall.sh"+  ],+  "discovery_triggers": [+    "solidworks",+    "swx",+    "open my part in solidworks",+    "solidworks bom",+    "bill of materials from a solidworks assembly",+    "export step from solidworks",+    "solidworks mass properties",+    "interference check",+    "pack and go",+    "sldprt",+    "sldasm",+    "slddrw"+  ]+}
page.json+23−81
@@ -1,84 +1,26 @@ {-  "schema_version": 1,   "slug": "solidworks-bridge",-  "type": "app",-  "title": "SOLIDWORKS Bridge",-  "brief": "Drive SOLIDWORKS desktop CAD from any Adom container via swx_* verbs: create/open/import documents, model with a JSON DSL, drive dimensions, export 15+ formats, generate assembly BOMs, mass properties and interference - deny-by-default writes, live-validated. Check adom-bridge bridge_list; install runtime via bridge_install with this page's manifest; skills via adom-wiki pkg install adom/solidworks-bridge.",-  "version": "0.1.0",-  "hero": {-    "type": "billboard",-    "headline": "SOLIDWORKS, driven by your AI",-    "subhead": "Create, model, measure and export real SOLIDWORKS parts from any Adom container - with writes locked to its own documents"-  },-  "author": {-    "name": "Drew Owens",-    "email": "[email protected]"-  },-  "tags": [],-  "license": "proprietary",-  "visibility": {-    "public": true-  },-  "sample_prompts": [],-  "discovery_triggers": [-    "solidworks",-    "open my part in solidworks",-    "create a new solidworks part",-    "model a bracket in solidworks",-    "make a part in solidworks",-    "solidworks bom",-    "bill of materials from a solidworks assembly",-    "export step from solidworks",-    "export stl from solidworks",-    "export glb from solidworks",-    "solidworks mass properties",-    "how heavy is this part",-    "interference check on my assembly",-    "change a dimension in solidworks",-    "drive a solidworks dimension",-    "solidworks custom properties",-    "open a sldprt file",-    "open a sldasm assembly",-    "import a step file into solidworks",-    "pack and go a solidworks design",-    "find my solidworks files",-    "rebuild check my model",-    "screenshot solidworks",-    "launch solidworks",-    "close my solidworks document",-    "solidworks parameters",-    "set material in solidworks",-    "swx",-    "sldprt",-    "sldasm",-    "slddrw",-    "3dexperience solidworks",-    "solidworks for makers",-    "export a step file from solidworks",-    "export a solidworks part to step",-    "get a step out of solidworks",-    "solidworks to step",-    "solidworks export",-    "make a bom in solidworks",-    "solidworks assembly bom",-    "measure my solidworks part",-    "solidworks design analysis",-    "automate solidworks",-    "control solidworks",-    "solidworks from the cloud",-    "drive solidworks with ai",-    "solidworks bridge"-  ],-  "discovery_pitch": null,-  "metadata": {},-  "created_at": "2026-09-03T15:20:54.269Z",-  "updated_at": "2026-09-03T15:20:54.269Z",-  "install": {-    "binary_name": "",-    "install_dir": "",-    "install_hint": "",-    "version_cmd": ""-  },-  "skills": [],-  "org": "adom"+  "discovery_pitch": "Drive SOLIDWORKS from any Adom container: check `adom-bridge bridge_list` for the bridge, install its runtime via bridge_install with this page's manifest, get skills via `adom-wiki pkg install adom/solidworks-bridge`, then drive swx_* verbs. Writes are deny-by-default: it creates and edits its own documents, never the user's, unless explicitly opted in.",+  "sample_prompts": [+    {+      "label": "New part",+      "prompt": "Create a new SolidWorks part and extrude a 50x30x20mm block in 6061 aluminum"+    },+    {+      "label": "Export STEP",+      "prompt": "Export my active SolidWorks part as a STEP file"+    },+    {+      "label": "Assembly BOM",+      "prompt": "Generate a BOM CSV from my SolidWorks assembly"+    },+    {+      "label": "Mass properties",+      "prompt": "How heavy is this part? Get mass properties from SolidWorks"+    },+    {+      "label": "Change a dimension",+      "prompt": "Set the extrusion depth on my SolidWorks part to 25mm"+    }+  ] }\ No newline at end of file
resources/macros/adom-hello.swpadded+32
@@ -0,0 +1,32 @@+' adom-hello.swp — PLACEHOLDER, not a runnable SOLIDWORKS macro yet.+'+' WHAT THIS FILE IS FOR+' swx_run_macro calls ISldWorks::RunMacro2(path, module, procedure, ...) and a+' caller needs something to point it at. This is the intended home of the+' bridge's own smallest working macro — the "does the macro road work at all"+' probe, run once against a live machine before anything relies on it.+'+' WHY IT IS A PLACEHOLDER AND NOT A MACRO+' A .swp IS plain text and IS editable by hand (CodeStack documents this, and it+' is why shipping a text file here is possible at all), but this bridge has not+' yet run a macro against a live SOLIDWORKS. Shipping a file that LOOKS like a+' working macro, in a repository whose whole discipline is separating "proven+' live" from "written from documentation", would be the one kind of dishonesty+' that matters here: the next person would assume it had been run. It has not.+' The real template gets recorded from SOLIDWORKS' own macro recorder — which is+' the only way to be sure of the module and procedure names it expects — and+' replaces this file wholesale.+'+' THE SHAPE IT WILL HAVE (module `main`, procedure `main` — the recorder's+' defaults, and swx_run_macro's defaults for that reason):+'+'   Dim swApp As SldWorks.SldWorks+'   Sub main()+'       Set swApp = Application.SldWorks+'       swApp.SendMsgToUser2 "adom bridge: hello", 1, 1+'   End Sub+'+' Even that is a guess about SendMsgToUser2 raising a modal — which this bridge+' must never do on somebody's desktop — so the recorded template will almost+' certainly write to a file or set a custom property instead. Recorded first,+' shipped second.
src/abwin.rsadded+400
@@ -0,0 +1,400 @@+//! SOLIDWORKS' WINDOWS, seen through ab's generic desktop verbs.+//!+//! This bridge deliberately owns no window code. Screenshots, window+//! enumeration, taskbar overlays and WM_CLOSE are ab-core capabilities that+//! every bridge would otherwise reimplement (badly, and differently), so the+//! `swx_*` window verbs are thin, honest delegations: we supply the SOLIDWORKS+//! knowledge (which HWND is the app, which dialog titles are blocking, what is+//! safe to touch) and ab supplies the mechanism.+//!+//! A callback that fails NEVER fails the verb: ab being unreachable means a+//! partial answer, not a broken bridge. Every helper here degrades to "unknown"+//! and says so.++use serde_json::{json, Value};+use std::time::Duration;++/// The Win32 dialog window class. Every SOLIDWORKS modal — Save changes?,+/// Document Recovery, the export option sheets — is one of these.+pub const DIALOG_CLASS: &str = "#32770";++/// Is this a top-level application FRAME rather than a dialog?+///+/// It matters because closing a frame is not "dismissing a dialog", it is+/// QUITTING THE APPLICATION — with Save-changes modals on the way out, and on a+/// Connected edition this bridge cannot start it again.+///+/// The hole this closes: `ownerConfirmed` is true precisely when a window is+/// most provably SOLIDWORKS', and the main frame is the most provable window+/// there is. So the "not a general window killer" guard passed on the one window+/// it should never have passed on — and `swx_status` / `swx_window_info` hand+/// `mainHwnd` to callers, so it was the obvious thing to try.+pub fn is_frame_window(w: &Value, main_hwnd: Option<i64>) -> bool {+    let hwnd = w.get("hwnd").and_then(|h| h.as_i64());+    if hwnd.is_some() && hwnd == main_hwnd {+        return true;+    }+    let class = w.get("className").and_then(|c| c.as_str()).unwrap_or("");+    // MFC frame windows (which is what SOLIDWORKS' own windows are) register as+    // `Afx:<hex>:...`. A dialog is `#32770`; ANYTHING ELSE — including a window+    // ab reports with no className at all — is treated as a frame.+    //+    // The `!class.is_empty() &&` that used to lead this expression inverted its+    // own fail-safe: a window whose class we could not read was declared "not a+    // frame" and therefore closable. Same rule as `kill_is_unsafe`: an+    // unanswerable question is not permission.+    class != DIALOG_CLASS+}++/// Dialog kinds this bridge itself causes. REPORTED, not licensed: closing even+/// one of these needs the process-level write opt-in, because on 2026-09-02+/// closing a stuck SOLIDWORKS modal through the window manager took the whole+/// application down. The flag exists so a caller can see which dialogs on screen+/// are the bridge's own mess.+///+/// Deliberately ONE entry: `export_options` is the sheet a `SaveAs3` raises.+/// Everything else, `settings` and `message` included, can equally be a dialog+/// the USER opened and is part-way through answering.+pub const BRIDGE_CAUSED_DIALOGS: &[&str] = &["export_options"];++/// Ask ab for the desktop's windows. Returns `Err` with a human message when+/// ab could not answer, so a caller can decide whether that is fatal (it never+/// is, here).+pub fn list_windows(timeout: Duration) -> Result<Vec<Value>, String> {+    let resp = crate::caller::ad_callback("desktop_list_windows", json!({}), timeout);+    windows_from(&resp).ok_or_else(|| {+        resp.get("error")+            .and_then(|e| e.as_str())+            .map(|s| s.to_string())+            .unwrap_or_else(|| "ab returned no window list".to_string())+    })+}++/// Dig the window array out of whichever envelope ab used. ab wraps some verb+/// payloads as a JSON STRING in `output` (`{"data":{"windows":[...]}}`) and+/// returns others inline, so both shapes are accepted rather than guessed at.+pub fn windows_from(resp: &Value) -> Option<Vec<Value>> {+    fn dig(v: &Value) -> Option<Vec<Value>> {+        v.get("windows")+            .or_else(|| v.get("data").and_then(|d| d.get("windows")))+            .and_then(|w| w.as_array())+            .cloned()+    }+    if let Some(w) = dig(resp) {+        return Some(w);+    }+    let inner: Value = serde_json::from_str(resp.get("output")?.as_str()?).ok()?;+    dig(&inner)+}++/// How a SOLIDWORKS dialog title is classified. The point of the classification+/// is the `blocking` / `neverAutoAnswer` split: a bridge may report anything,+/// but it must not answer a question about the USER'S unsaved work.+pub fn classify(title: &str) -> (&'static str, bool, bool) {+    let t = title.to_lowercase();+    // (kind, blocking, neverAutoAnswer)+    if t.contains("save") && (t.contains("change") || t.contains("?")) {+        return ("save_changes", true, true);+    }+    if t.contains("recover") {+        return ("document_recovery", true, true);+    }+    if t.contains("licen") || t.contains("activat") || t.contains("3dexperience") {+        return ("license", true, true);+    }+    if t.contains("update") || t.contains("upgrade") {+        return ("update", true, true);+    }+    if t == "export" || t.starts_with("export ") || t.contains("export options") {+        return ("export_options", true, false);+    }+    if t.contains("units") || t.contains("template") || t.contains("options") {+        return ("settings", true, false);+    }+    if t.contains("error") || t.contains("warning") || t.contains("rebuild") {+        return ("message", true, false);+    }+    ("unknown", true, true)+}++/// Is this window plausibly SOLIDWORKS'? `main_hwnd` (from COM's+/// `Frame().GetHWnd()`) identifies the application window exactly; a top-level+/// `#32770` cannot be attributed from the flat list ab returns, so it is+/// reported with `ownerConfirmed:false` rather than silently claimed.+pub fn is_solidworks_window(w: &Value, main_hwnd: Option<i64>, sw_pid: Option<i64>) -> Option<(bool, bool)> {+    let hwnd = w.get("hwnd").and_then(|h| h.as_i64())?;+    let title = w.get("title").and_then(|t| t.as_str()).unwrap_or("");+    let class = w.get("className").and_then(|c| c.as_str()).unwrap_or("");+    let pid = w.get("pid").and_then(|p| p.as_i64());++    // PROOF, in the only two forms available:+    //   1. the hwnd IS the application window COM told us about, or+    //   2. the window's owner pid IS SOLIDWORKS' pid.+    if Some(hwnd) == main_hwnd {+        return Some((true, true));+    }+    if let (Some(p), Some(sw)) = (pid, sw_pid) {+        if p == sw {+            return Some((true, true));+        }+        // A pid we CAN see, that is not SOLIDWORKS', is not ours at all.+        return None;+    }++    // Everything below is a CANDIDATE, never a confirmation.+    //+    // A title merely CONTAINING "SOLIDWORKS" used to count as proof, and it is+    // not: the SOLIDWORKS Installation Manager, a 3DEXPERIENCE launcher dialog+    // and an ordinary Explorer window showing a SOLIDWORKS folder all match,+    // and none of them belong to the process this bridge is driving. With COM+    // down there is no `main_hwnd` either, so the title would be the ONLY test —+    // exactly when being wrong is most likely.+    if title.to_uppercase().contains("SOLIDWORKS") {+        return Some((true, false));+    }+    if class == DIALOG_CLASS {+        return Some((true, false));+    }+    None+}++/// The dialog census: every window that could be a SOLIDWORKS modal, classified.+pub fn dialog_census(windows: &[Value], main_hwnd: Option<i64>, sw_pid: Option<i64>) -> Vec<Value> {+    let mut out = Vec::new();+    for w in windows {+        let class = w.get("className").and_then(|c| c.as_str()).unwrap_or("");+        let title = w.get("title").and_then(|t| t.as_str()).unwrap_or("");+        if class != DIALOG_CLASS {+            continue;+        }+        let Some((ours, confirmed)) = is_solidworks_window(w, main_hwnd, sw_pid) else { continue };+        if !ours {+            continue;+        }+        let (kind, blocking, never_auto) = classify(title);+        out.push(json!({+            "hwnd": w.get("hwnd").cloned().unwrap_or(Value::Null),+            "title": title,+            "className": class,+            "kind": kind,+            "bridgeCaused": BRIDGE_CAUSED_DIALOGS.contains(&kind),+            "blocking": blocking,+            "neverAutoAnswer": never_auto,+            "ownerConfirmed": confirmed,+            "rect": w.get("rect").cloned().unwrap_or(Value::Null),+        }));+    }+    out+}++/// Every window we believe belongs to SOLIDWORKS, for `swx_window_info`.+pub fn solidworks_windows(windows: &[Value], main_hwnd: Option<i64>, sw_pid: Option<i64>) -> Vec<Value> {+    windows+        .iter()+        .filter_map(|w| {+            let (ours, confirmed) = is_solidworks_window(w, main_hwnd, sw_pid)?;+            if !ours {+                return None;+            }+            let class = w.get("className").and_then(|c| c.as_str()).unwrap_or("");+            Some(json!({+                "hwnd": w.get("hwnd").cloned().unwrap_or(Value::Null),+                "title": w.get("title").cloned().unwrap_or(Value::Null),+                "className": class,+                "rect": w.get("rect").cloned().unwrap_or(Value::Null),+                "isMain": w.get("hwnd").and_then(|h| h.as_i64()) == main_hwnd,+                "isDialog": class == DIALOG_CLASS,+                "isFrame": is_frame_window(w, main_hwnd),+                // `closable` is what a caller ACTS on, so it has to fold in+                // every refusal `swx_close_window` applies — not just+                // attribution. Reporting a Save-changes dialog as closable was+                // the same discoverability shape as handing out `mainHwnd`.+                "closable": !is_frame_window(w, main_hwnd)+                    && confirmed+                    && !classify(w.get("title").and_then(|t| t.as_str()).unwrap_or("")).2,+                "pid": w.get("pid").cloned().unwrap_or(Value::Null),+                "ownerConfirmed": confirmed,+            }))+        })+        .collect()+}++/// Close one window through ab's UIA WindowPattern.+pub fn close_window(hwnd: i64, reason: &str, timeout: Duration) -> Value {+    crate::caller::ad_callback(+        "desktop_ui_window",+        json!({"action": "close", "hwnd": hwnd, "reason": reason}),+        timeout,+    )+}++/// Put (or clear) the "Adom is driving SOLIDWORKS" taskbar overlay badge.+pub fn set_badge(hwnd: i64, on: bool, tooltip: &str, timeout: Duration) -> Value {+    crate::caller::ad_callback(+        "desktop_taskbar",+        json!({+            "hwnd": hwnd,+            "overlay": {"badge": if on { "adom" } else { "none" }, "tooltip": tooltip},+        }),+        timeout,+    )+}++/// Background PrintWindow capture of one window — and, per ab's contract, of+/// every popup/dialog that window owns. That owned-popup list is the only+/// AUTHORITATIVE way to attribute a dialog to SOLIDWORKS, which is why+/// `swx_state`'s screenshot doubles as the trustworthy dialog census.+pub fn screenshot(hwnd: i64, timeout: Duration) -> Value {+    crate::caller::ad_callback("desktop_screenshot_window", json!({"hwnd": hwnd}), timeout)+}++#[cfg(test)]+mod tests {+    use super::*;++    fn win(hwnd: i64, title: &str, class: &str) -> Value {+        json!({"hwnd": hwnd, "title": title, "className": class, "rect": {"left": 0}})+    }++    #[test]+    fn unwraps_both_envelopes_ab_actually_uses() {+        // inline+        let inline = json!({"windows": [win(1, "a", "X")]});+        assert_eq!(windows_from(&inline).unwrap().len(), 1);+        // the real one observed live: a JSON STRING under `output`+        let nested = json!({"output": json!({"data": {"windows": [win(1, "a", "X"), win(2, "b", "Y")]}}).to_string()});+        assert_eq!(windows_from(&nested).unwrap().len(), 2);+        // and a shape with neither+        assert!(windows_from(&json!({"error": "nope"})).is_none());+    }++    #[test]+    fn the_dialogs_that_must_never_be_auto_answered_are_flagged() {+        for (title, kind) in [+            ("SOLIDWORKS", "unknown"),+            ("Save changes to Part1?", "save_changes"),+            ("SOLIDWORKS Document Recovery", "document_recovery"),+            ("3DEXPERIENCE", "license"),+        ] {+            let (k, blocking, never) = classify(title);+            assert_eq!(k, kind, "{title}");+            assert!(blocking, "{title}");+            assert!(never, "{title} must never be auto-answered");+        }+        // An export option sheet is classified as answerable IN PRINCIPLE (it is+        // the bridge's own dialog, not a question about the user's work) — but+        // classification is only half the decision: closing also requires the+        // window to be attributable to SOLIDWORKS. See+        // `an_unattributed_dialog_is_never_closable`.+        let (k, _, never) = classify("Export");+        assert_eq!(k, "export_options");+        assert!(!never);+    }++    #[test]+    fn the_application_frame_is_never_closable() {+        // THE round-7 hole. `ownerConfirmed` is true exactly when a window is+        // most provably SOLIDWORKS' — and the main frame is the most provable+        // window there is, so the "not a general window killer" guard passed on+        // the one window that must never be closed this way. Closing a frame is+        // quitting the application, which is swx_stop's job and is gated.+        let main = Some(4242);+        let frame = win(4242, "SOLIDWORKS Design Professional for Makers 2026", "Afx:0000");+        assert!(is_frame_window(&frame, main), "the main window is a frame");+        let ours = solidworks_windows(&[frame.clone()], main, None);+        assert_eq!(ours[0]["isMain"], true);+        assert_eq!(ours[0]["ownerConfirmed"], true, "it IS provably ours...");+        assert_eq!(ours[0]["closable"], false, "...and it is still never closable");++        // A SECOND SOLIDWORKS frame (a second document window) is a frame too,+        // even without being the one COM told us about.+        let other = win(5555, "SOLIDWORKS", "Afx:0001");+        assert!(is_frame_window(&other, main));+        // A dialog is not a frame — that is what this verb is for.+        let mut dialog = win(858186, "Export", DIALOG_CLASS);+        dialog["pid"] = json!(777);+        assert!(!is_frame_window(&dialog, main));+        assert_eq!(solidworks_windows(&[dialog], main, Some(777))[0]["closable"], true);+        // ...but a dialog about the USER'S OWN WORK is never closable, however+        // provably ours it is.+        let mut theirs = win(9001, "Save changes to gearbox?", DIALOG_CLASS);+        theirs["pid"] = json!(777);+        let row = solidworks_windows(&[theirs], main, Some(777));+        assert_eq!(row[0]["ownerConfirmed"], true);+        assert_eq!(row[0]["closable"], false, "never advertise the user's own question as closable");+    }++    #[test]+    fn only_dialogs_the_bridge_itself_raised_are_closable_without_the_opt_in() {+        // `export_options` is the sheet our own SaveAs3 raises. `settings` and+        // `message` can just as easily be something the USER opened and is+        // part-way through answering.+        assert!(BRIDGE_CAUSED_DIALOGS.contains(&"export_options"));+        for user_owned in ["settings", "message", "unknown", "save_changes"] {+            assert!(+                !BRIDGE_CAUSED_DIALOGS.contains(&user_owned),+                "{user_owned} may belong to the user"+            );+        }+    }++    #[test]+    fn an_unattributed_dialog_is_never_closable() {+        // THE regression test for the review finding. ab's flat window list+        // carries no owner pid, so a bare `#32770` could belong to Word's Save+        // dialog just as easily as to SOLIDWORKS. The census must mark it+        // ownerConfirmed:false, and the close path must refuse it on that basis+        // — the earlier version of this test asserted the opposite ("ours to+        // close"), encoding the hazard as intended behaviour.+        let windows = vec![win(858186, "Export", DIALOG_CLASS)];+        let census = dialog_census(&windows, Some(1836650), None);+        assert_eq!(census.len(), 1, "it IS reported");+        assert_eq!(census[0]["ownerConfirmed"], false, "...but never as proven SOLIDWORKS'");+        // A dialog whose title names SOLIDWORKS is attributable, and a #32770 is+        // exactly how SOLIDWORKS' own dialogs present.+        // A title containing "SOLIDWORKS" is NOT proof: the Installation+        // Manager and a 3DEXPERIENCE launcher dialog both match it and neither+        // is the process we are driving.+        let named = vec![win(9, "SOLIDWORKS Installation Manager", DIALOG_CLASS)];+        assert_eq!(dialog_census(&named, None, None)[0]["ownerConfirmed"], false);+        // An owner pid IS proof, in both directions.+        let mut owned = win(11, "Export", DIALOG_CLASS);+        owned["pid"] = json!(4242);+        assert_eq!(dialog_census(&[owned.clone()], None, Some(4242))[0]["ownerConfirmed"], true);+        assert!(dialog_census(&[owned], None, Some(777)).is_empty(), "another app's dialog is not ours at all");+    }++    #[test]+    fn attribution_is_reported_not_assumed() {+        let main = Some(1836650);+        let windows = vec![+            win(1836650, "SOLIDWORKS Design Professional for Makers 2026", "Afx:0000"),+            win(858186, "Export", DIALOG_CLASS),+            win(266266, "gallia - Google Chrome", "Chrome_WidgetWin_1"),+        ];+        let ours = solidworks_windows(&windows, main, None);+        assert_eq!(ours.len(), 2, "Chrome is not ours");+        assert_eq!(ours[0]["isMain"], true);+        assert_eq!(ours[0]["ownerConfirmed"], true);+        // a bare #32770 is a CANDIDATE, and says so+        assert_eq!(ours[1]["isDialog"], true);+        assert_eq!(ours[1]["ownerConfirmed"], false);++        let dialogs = dialog_census(&windows, main, None);+        assert_eq!(dialogs.len(), 1);+        assert_eq!(dialogs[0]["kind"], "export_options");+        assert_eq!(dialogs[0]["hwnd"], 858186);+    }++    #[test]+    fn without_a_com_hwnd_the_main_window_is_still_found_by_title() {+        let windows = vec![win(9, "SOLIDWORKS Design Professional", "Afx:1")];+        let ours = solidworks_windows(&windows, None, None);+        assert_eq!(ours.len(), 1, "it is still REPORTED as a candidate");+        assert_eq!(ours[0]["isMain"], false, "unproven without the COM hwnd");+        assert_eq!(+            ours[0]["ownerConfirmed"], false,+            "a title is not proof of ownership — and with COM down it would be the ONLY test"+        );+    }+}
src/bom.rsadded+153
@@ -0,0 +1,153 @@+//! BOM assembly: the com host returns raw component rows; the SERVER turns them+//! into the deliverable.+//!+//! That split is deliberate. The host process is doing single-threaded COM work+//! against a live application — the less time it spends sorting strings and+//! building CSV, the shorter the window in which SOLIDWORKS is blocked. So the+//! host walks the tree and the server does the paperwork: sort by name, work out+//! the union of custom-property names (they differ per component — that union is+//! the column set), and write RFC 4180 CSV.++use serde_json::Value;++/// Rows sorted by name, case-insensitively — the order a human reads a BOM in.+pub fn sort_rows(rows: &mut [Value]) {+    rows.sort_by_key(|r| r.get("name").and_then(|v| v.as_str()).unwrap_or("").to_lowercase());+}++/// The union of every row's custom-property names, sorted: the CSV columns.+pub fn prop_columns(rows: &[Value]) -> Vec<String> {+    let mut names: Vec<String> = rows+        .iter()+        .filter_map(|r| r.get("properties").and_then(|p| p.as_object()))+        .flat_map(|p| p.keys().cloned())+        .collect();+    names.sort();+    names.dedup();+    names+}++/// A property's display value: `resolved` (what SOLIDWORKS evaluates the+/// expression to) beats the raw `value`; missing is empty.+fn prop_cell(row: &Value, name: &str) -> String {+    let p = row.get("properties").and_then(|p| p.get(name));+    for key in ["resolved", "value"] {+        if let Some(v) = p.and_then(|p| p.get(key)) {+            let s = cell(v);+            if !s.is_empty() {+                return s;+            }+        }+    }+    String::new()+}++fn cell(v: &Value) -> String {+    match v {+        Value::Null => String::new(),+        Value::String(s) => s.clone(),+        other => other.to_string(),+    }+}++fn escape(field: &str) -> String {+    if field.contains([',', '"', '\n', '\r']) {+        format!("\"{}\"", field.replace('"', "\"\""))+    } else {+        field.to_string()+    }+}++fn write_row(out: &mut String, fields: &[String]) {+    out.push_str(&fields.iter().map(|f| escape(f)).collect::<Vec<_>>().join(","));+    out.push_str("\r\n");+}++/// The whole CSV: fixed columns first, then one column per custom property.+pub fn to_csv(rows: &[Value], prop_names: &[String]) -> String {+    let mut out = String::new();+    let mut header: Vec<String> =+        ["item", "name", "configuration", "quantity", "file"].iter().map(|s| s.to_string()).collect();+    header.extend(prop_names.iter().cloned());+    write_row(&mut out, &header);++    for (i, row) in rows.iter().enumerate() {+        let mut fields = vec![+            (i + 1).to_string(),+            cell(row.get("name").unwrap_or(&Value::Null)),+            cell(row.get("configuration").unwrap_or(&Value::Null)),+            cell(row.get("quantity").unwrap_or(&Value::Null)),+            cell(row.get("file").unwrap_or(&Value::Null)),+        ];+        fields.extend(prop_names.iter().map(|p| prop_cell(row, p)));+        write_row(&mut out, &fields);+    }+    out+}++#[cfg(test)]+mod tests {+    use super::*;+    use serde_json::json;++    fn rows() -> Vec<Value> {+        vec![+            json!({"name": "shaft", "configuration": "Long", "quantity": 1,+                   "file": "C:\\m\\shaft.sldprt",+                   "properties": {"PartNo": {"value": "SHF-220", "resolved": "SHF-220"}}}),+            json!({"name": "Bracket", "configuration": "Default", "quantity": 2,+                   "file": "C:\\m\\bracket.sldprt",+                   "properties": {"PartNo": {"value": "BRK-100", "resolved": "BRK-100"},+                                  "Material": {"value": "6061-T6", "resolved": "6061-T6"}}}),+        ]+    }++    #[test]+    fn sorts_case_insensitively_by_name() {+        let mut r = rows();+        sort_rows(&mut r);+        assert_eq!(r[0]["name"], "Bracket");+    }++    #[test]+    fn columns_are_the_sorted_union_of_property_names() {+        assert_eq!(prop_columns(&rows()), vec!["Material".to_string(), "PartNo".to_string()]);+    }++    #[test]+    fn csv_has_a_header_item_numbers_and_blank_cells_for_absent_props() {+        let mut r = rows();+        sort_rows(&mut r);+        let cols = prop_columns(&r);+        let csv = to_csv(&r, &cols);+        let lines: Vec<&str> = csv.lines().collect();+        assert_eq!(lines[0], "item,name,configuration,quantity,file,Material,PartNo");+        assert_eq!(lines[1], "1,Bracket,Default,2,C:\\m\\bracket.sldprt,6061-T6,BRK-100");+        // shaft has no Material -> empty cell, and keeps its item number+        assert_eq!(lines[2], "2,shaft,Long,1,C:\\m\\shaft.sldprt,,SHF-220");+        assert!(csv.ends_with("\r\n"), "RFC 4180 line endings");+    }++    #[test]+    fn fields_with_commas_and_quotes_are_escaped() {+        let r = vec![json!({+            "name": "odd, part", "configuration": "\"quoted\"", "quantity": 1, "file": "x",+            "properties": {"Note": {"resolved": "a,b"}}+        })];+        let csv = to_csv(&r, &["Note".to_string()]);+        assert!(csv.contains("\"odd, part\""), "{csv}");+        assert!(csv.contains("\"\"\"quoted\"\"\""), "{csv}");+        assert!(csv.contains("\"a,b\""), "{csv}");+    }++    #[test]+    fn resolved_wins_over_value_and_missing_is_blank() {+        let r = vec![json!({+            "name": "n", "quantity": 1, "file": "f", "configuration": "",+            "properties": {"A": {"value": "raw", "resolved": "evaluated"}, "B": {}}+        })];+        let csv = to_csv(&r, &["A".to_string(), "B".to_string()]);+        assert!(csv.contains("evaluated,"), "{csv}");+        assert!(csv.trim_end().ends_with("evaluated,"), "{csv}");+    }+}
src/caller.rsadded+196
@@ -0,0 +1,196 @@+//! Caller provenance — WHO asked.+//!+//! A user runs ~20 AI threads against one desktop. ab stamps the caller on every+//! relayed request TWO ways and we read both:+//!+//!   * `args.caller = {aiThread, containerName, source}` — what the CLI's+//!     `--ai-thread` flag actually produces, and what shows up in practice;+//!   * `X-Adom-Caller-Thread` / `-Container` / `-Reason` headers — the form ab+//!     uses on its own direct-API callbacks and what the SDK samples forward.+//!+//! args wins when both are present (it carries the explicit identity).+//!+//! TRUST RULE (ab's, and not optional): these values are SELF-ASSERTED, exactly+//! like `reason`. Use them for logging, UX and window labels — NEVER for+//! authorization. `if thread == "admin" { allow() }` is a hole, not a check.+//!+//! Identity is thread-local: each HTTP request is served on its own worker+//! thread, so no request can see another's caller.++use serde_json::Value;+use std::cell::RefCell;++/// What we call ourselves when we forward identity on a callback to ab.+pub const DELEGATE: &str = "solidworks";++pub const HEADERS: [&str; 3] =+    ["X-Adom-Caller-Thread", "X-Adom-Caller-Container", "X-Adom-Caller-Reason"];++#[derive(Default, Clone, Debug)]+pub struct Identity {+    pub thread: String,+    pub container: String,+    pub reason: String,+}++thread_local! {+    static CURRENT: RefCell<Option<Identity>> = const { RefCell::new(None) };+}++/// Capture the caller of the request this thread is about to serve.+pub fn set_from_request(header: impl Fn(&str) -> Option<String>, args: &Value) -> Identity {+    let mut ident = Identity {+        thread: header(HEADERS[0]).unwrap_or_default(),+        container: header(HEADERS[1]).unwrap_or_default(),+        reason: header(HEADERS[2]).unwrap_or_default(),+    };+    if let Some(caller) = args.get("caller").and_then(|c| c.as_object()) {+        if let Some(t) = caller.get("aiThread").and_then(|v| v.as_str()) {+            if !t.is_empty() {+                ident.thread = t.to_string();+            }+        }+        if let Some(c) = caller.get("containerName").and_then(|v| v.as_str()) {+            if !c.is_empty() {+                ident.container = c.to_string();+            }+        }+    }+    if ident.reason.is_empty() {+        if let Some(r) = args.get("reason").and_then(|v| v.as_str()) {+            ident.reason = r.to_string();+        }+    }+    CURRENT.with(|c| *c.borrow_mut() = Some(ident.clone()));+    ident+}++pub fn clear() {+    CURRENT.with(|c| *c.borrow_mut() = None);+}++pub fn current() -> Option<Identity> {+    CURRENT.with(|c| c.borrow().clone())+}++/// The ` caller="..."` fragment for the one-line-per-verb log, or "" when the+/// caller is anonymous (loopback callers — Hydrogen, another bridge, the local+/// CLI — send nothing, and that is fine).+pub fn log_suffix() -> String {+    match current() {+        Some(i) if !i.thread.is_empty() => format!(" caller=\"{}\"", i.thread),+        _ => String::new(),+    }+}++/// Headers to put on a callback we make WHILE serving an AI's verb: echo the+/// three we were handed, and add the Delegate naming us — so ab's Activity Log+/// can show BOTH facts, "chip-fetcher tab 3 (via solidworks)".+pub fn forward_headers() -> Vec<(String, String)> {+    let ident = match current() {+        Some(i) if !i.thread.is_empty() => i,+        _ => return Vec::new(),+    };+    vec![+        (HEADERS[0].to_string(), ident.thread),+        (HEADERS[1].to_string(), ident.container),+        (HEADERS[2].to_string(), ident.reason),+        ("X-Adom-Caller-Delegate".to_string(), DELEGATE.to_string()),+    ]+}++/// The `caller` args block for a callback the bridge makes on its OWN behalf+/// (a poll, a timer, cleanup): an explicit caller in args always beats the+/// forwarded headers, so no stale thread name can leak onto our own work.+pub fn self_caller() -> Value {+    serde_json::json!({"aiThread": "solidworks bridge (self)", "containerName": "local"})+}++/// Call an ab verb back over the loopback direct API, forwarding the caller.+///+/// ab injects `ADOM_DIRECT_API_URL` and `ADOM_BRIDGE_TOKEN` into our spawn env.+/// NEVER raises and never fails the verb it is helping: a delegated screenshot+/// that ab refuses is a partial answer, not a broken `swx_screenshot`.+/// Is ab's direct API reachable at all? False when this bridge was started by+/// hand instead of spawned by Adom Bridge, in which case every ab-delegated verb+/// fails for a reason unrelated to SOLIDWORKS — worth being able to say up front.+pub fn ab_available() -> bool {+    std::env::var("ADOM_DIRECT_API_URL").map(|v| !v.trim().is_empty()).unwrap_or(false)+}++pub fn ad_callback(command: &str, args: Value, timeout: std::time::Duration) -> Value {+    let base = std::env::var("ADOM_DIRECT_API_URL").unwrap_or_default();+    let base = base.trim_end_matches('/').to_string();+    if base.is_empty() {+        return serde_json::json!({+            "success": false,+            "error": "ADOM_DIRECT_API_URL not in env (inbound-only spawn?)",+        });+    }+    let mut args = args;+    let mut headers = forward_headers();+    if headers.is_empty() {+        // No caller to forward — this is our own initiative, so say so.+        if let Value::Object(map) = &mut args {+            map.entry("caller").or_insert_with(self_caller);+        }+    }+    if let Ok(token) = std::env::var("ADOM_BRIDGE_TOKEN") {+        if !token.is_empty() {+            // Attribution badge, not an auth gate.+            headers.push(("X-Adom-Bridge-Token".to_string(), token));+        }+    }+    let body = serde_json::json!({"command": command, "args": args}).to_string();+    match crate::httpc::post_json(&format!("{base}/command"), &headers, &body, timeout) {+        Ok(resp) => resp+            .json()+            .unwrap_or_else(|e| serde_json::json!({"success": false, "error": e})),+        Err(e) => serde_json::json!({"success": false, "error": format!("ab callback failed: {e}")}),+    }+}++#[cfg(test)]+mod tests {+    use super::*;+    use serde_json::json;++    fn no_headers(_: &str) -> Option<String> {+        None+    }++    #[test]+    fn args_caller_beats_headers() {+        let ident = set_from_request(+            |h| match h {+                "X-Adom-Caller-Thread" => Some("from-header".into()),+                _ => None,+            },+            &json!({"caller": {"aiThread": "from-args", "containerName": "box"}}),+        );+        assert_eq!(ident.thread, "from-args");+        assert_eq!(ident.container, "box");+        assert_eq!(log_suffix(), " caller=\"from-args\"");+        clear();+    }++    #[test]+    fn anonymous_callers_log_and_forward_nothing() {+        set_from_request(no_headers, &json!({}));+        assert_eq!(log_suffix(), "");+        assert!(forward_headers().is_empty());+        clear();+    }++    #[test]+    fn reason_falls_back_to_the_arg_and_the_delegate_is_added() {+        set_from_request(+            |h| (h == "X-Adom-Caller-Thread").then(|| "tab-3".to_string()),+            &json!({"reason": "prototyping a verb"}),+        );+        let fwd = forward_headers();+        assert!(fwd.contains(&("X-Adom-Caller-Delegate".into(), "solidworks".into())));+        assert!(fwd.contains(&("X-Adom-Caller-Reason".into(), "prototyping a verb".into())));+        clear();+    }+}
src/comhost/com.rsadded+3084
@@ -0,0 +1,3084 @@+//! ComBackend — the real SOLIDWORKS, over late-bound COM. Windows only.+//!+//! This is the direct port of the PowerShell sidecar it replaces, semantics+//! preserved call for call, because those semantics were learned the hard way:+//!+//!   * ATTACH FIRST (`GetActiveObject`), launch only when asked. Silently+//!     starting a 90-second application because someone ran a read verb is a+//!     hostile thing to do to a user's machine.+//!   * `OpenDoc6` with `swOpenDocOptions_Silent` (1) and byref error/warning+//!     out-params — an unattended bridge must never park SOLIDWORKS on a dialog+//!     nobody will answer. Fall back to legacy `OpenDoc` if the late-bound byref+//!     call comes back empty.+//!   * `Save3(1, ...)` / `SaveAs3(path, 0, 1)` — silent, copy-mode; SaveAs3+//!     keys the format off the destination extension.+//!   * Suppressed components (`GetSuppression() == 0`) are excluded from BOMs.+//!   * `InterferenceDetectionManager` is always closed with `Done()`, on every+//!     path — leaving it open leaves SOLIDWORKS in a modal-ish state.+//!+//! The COM layer cannot be exercised here (the trial serial is pending), so it+//! is written to degrade honestly: every failure carries what SOLIDWORKS+//! actually said, and a panic is caught by the host loop rather than crossing+//! the protocol boundary.++use super::host::{Backend, HostError, COMMANDS};+use super::expr::{parse_chain, Literal};+use super::variant::{Disp, Var};+use serde_json::{json, Map, Value};+use windows::core::{Interface, BSTR, GUID};+use windows::Win32::System::Com::{+    CLSIDFromProgID, CoCreateInstance, CoInitializeEx, IDispatch, CLSCTX_LOCAL_SERVER,+    COINIT_APARTMENTTHREADED,+};+use windows::Win32::System::Ole::GetActiveObject;+use windows::Win32::System::Variant::VARIANT;++const PROG_ID: &str = "SldWorks.Application";++/// swDocumentTypes_e+const DOC_PART: i32 = 1;+const DOC_ASSEMBLY: i32 = 2;+const DOC_DRAWING: i32 = 3;++fn doc_type_id(path: &str) -> Option<i32> {+    match super::mock::doc_type_of(path) {+        Some("part") => Some(DOC_PART),+        Some("assembly") => Some(DOC_ASSEMBLY),+        Some("drawing") => Some(DOC_DRAWING),+        _ => None,+    }+}++fn doc_type_name(id: i32) -> String {+    match id {+        DOC_PART => "part".into(),+        DOC_ASSEMBLY => "assembly".into(),+        DOC_DRAWING => "drawing".into(),+        other => format!("unknown({other})"),+    }+}++pub struct ComBackend {+    sw: Option<Disp>,+    was_launched: bool,+    /// The com host's OWN record of the documents it created — independent of+    /// the server's registry, and the reason this is not just a duplicated+    /// check. Rounds 3 and 5 both turned on the server-authorizes / host-acts+    /// split: a server-side decision is a claim, and the host acted on it. The+    /// host creates every document itself (`new_document`, `import`,+    /// `run_script`'s `new_part`), so it can answer "is this mine?" without+    /// being told — and it refuses a write the server "authorized" if its own+    /// answer differs.+    created: Vec<(String, Option<String>)>,+    /// The SOLIDWORKS session `created` belongs to. A record from another+    /// session is worthless: SOLIDWORKS restarts its Part numbering, so a+    /// remembered `Part1` would match the user's next one.+    created_session: Option<i64>,+    /// The component-insertion call that WORKED on this install, remembered+    /// after the first success.+    ///+    /// `IAssemblyDoc::AddComponent5` is documented as THE way to insert a+    /// component, and on this bridge's first live target (SOLIDWORKS Connected+    /// R2026x) it hands back `Nothing` — which an earlier probe read as "the+    /// edition cannot do it". It can: the return value is the lie, not the+    /// insertion. So `add_component` walks a ladder of spellings and decides+    /// success by COUNTING COMPONENTS rather than by trusting a return, and the+    /// rung that worked is cached here — a 150-component assembly must not pay+    /// the discovery cost 150 times.+    insert_method: Option<String>,+}++impl Default for ComBackend {+    fn default() -> Self {+        Self::new()+    }+}++impl ComBackend {+    /// Initializes COM for THIS thread as an STA. The com-host child runs its+    /// whole loop on one thread precisely so this holds for every call.+    pub fn new() -> Self {+        unsafe {+            // S_FALSE (already initialized) is fine; only a hard failure matters,+            // and it will resurface on the first call with a real message.+            let _ = CoInitializeEx(None, COINIT_APARTMENTTHREADED);+        }+        super::host::log("COM initialized (STA)");+        // A com-host child is killed and respawned by design — that is the whole+        // point of the child-process architecture. Its record of what it created+        // has to survive that, or the FIRST thing a respawn does is start+        // refusing writes to the bridge's own documents, silently, exactly after+        // the recovery path the architecture exists for.+        let (created_session, created) = crate::comhost::created_store::load_session();+        Self { sw: None, was_launched: false, created, created_session, insert_method: None }+    }++    fn clsid() -> Result<GUID, HostError> {+        let wide: Vec<u16> = PROG_ID.encode_utf16().chain(std::iter::once(0)).collect();+        unsafe {+            CLSIDFromProgID(windows::core::PCWSTR(wide.as_ptr())).map_err(|e| {+                HostError::detailed(+                    "SOLIDWORKS is not registered on this machine (no SldWorks.Application \+                     ProgID) — it is either not installed or the install is broken",+                    format!("{e}"),+                )+            })+        }+    }++    /// A live SldWorks.Application. Attaches to a running instance first;+    /// launches one only when `launch` is set.+    fn app(&mut self, launch: bool, visible: bool) -> Result<Disp, HostError> {+        if let Some(sw) = &self.sw {+            // Probe the cached object: a SOLIDWORKS that has since exited leaves+            // a stale proxy that fails on first touch.+            if sw.call("Visible", &[]).is_ok() {+                return Ok(sw.clone());+            }+            self.sw = None;+        }+        let clsid = Self::clsid()?;+        unsafe {+            let mut unk = None;+            if GetActiveObject(&clsid, None, &mut unk).is_ok() {+                if let Some(unk) = unk {+                    if let Ok(disp) = unk.cast::<IDispatch>() {+                        super::host::log("attached to running SOLIDWORKS");+                        let d = Disp(disp);+                        self.sw = Some(d.clone());+                        return Ok(d);+                    }+                }+            }+        }+        if !launch {+            return Err(HostError::msg(+                "SOLIDWORKS is not running (start it, then retry — swx_start reports whether \+                 this edition can be launched programmatically at all)",+            ));+        }+        super::host::log("launching SOLIDWORKS via COM (cold start can take 30-90s)...");+        let disp: IDispatch = unsafe {+            CoCreateInstance(&clsid, None, CLSCTX_LOCAL_SERVER).map_err(|e| {+                HostError::detailed(+                    "failed to launch SOLIDWORKS via COM. On SOLIDWORKS Connected / \+                     3DEXPERIENCE (including Design Professional for Makers) this ALWAYS \+                     fails: the process it spawns refuses with \"SOLIDWORKS Design must be \+                     launched from the 3DEXPERIENCE Platform\" and never becomes a drivable \+                     COM server. The human has to start it from the 3DEXPERIENCE Platform or \+                     the desktop shortcut it created.",+                    format!("{e}"),+                )+            })?+        };+        let sw = Disp(disp);+        sw.try_put("Visible", &Var::boolean(visible));+        // Suppress blocking modal dialogs where the API allows it: an unattended+        // bridge must never park SOLIDWORKS on a question nobody will answer.+        sw.try_put("UserControlBackground", &Var::boolean(true));+        self.was_launched = true;+        self.sw = Some(sw.clone());+        Ok(sw)+    }++    fn doc_info(doc: &Disp) -> Value {+        let type_id = doc.int("GetType", &[]).unwrap_or(0);+        let config = doc+            .obj("ConfigurationManager", &[])+            .ok()+            .flatten()+            .and_then(|cm| cm.obj("ActiveConfiguration", &[]).ok().flatten())+            .and_then(|c| c.string("Name", &[]));+        json!({+            "title": doc.string("GetTitle", &[]),+            "path": doc.string("GetPathName", &[]),+            "type": doc_type_name(type_id),+            "config": config,+            "dirty": doc.flag("GetSaveFlag", &[]),+        })+    }++    /// The target document: explicit `path`, else the active doc.+    fn resolve(&mut self, args: &Value) -> Result<Disp, HostError> {+        let sw = self.app(false, true)?;+        // Resolution order: `path`, then `docName`/`name` (a TITLE), then ActiveDoc.+        //+        // PATH FIRST, and this ordering is load-bearing. A title is not an+        // identity: `C:\users\thing.sldprt` and `C:\bridge\thing.sldprt` are+        // both titled `thing.sldprt`, and having two such documents open is+        // ordinary — so a save_as authorized against the bridge's copy once+        // renamed the user's.+        //+        // BUT A TITLE IS THE ONLY IDENTITY AN UNSAVED DOCUMENT HAS, and this is+        // where the live run broke. `GetOpenDocumentByName` wants a FULL PATH;+        // handed the title of a document that has never been saved it returns+        // nothing, so `swx_new_document` produced a `Part2` that `swx_docs`+        // listed and every other verb reported as "document not open" —+        // including with no target at all, because the server now always sends+        // the resolved identity. The whole create → model → export flow was dead+        // for new documents while 89 mock tests passed, since the mock resolved+        // titles from its own map.+        //+        // So a title is resolved by WALKING THE OPEN DOCUMENTS and comparing+        // `GetTitle()`. That works for saved and unsaved alike, and it lets the+        // ambiguity rule be enforced here too rather than trusting whichever+        // document SOLIDWORKS happens to hand back first.+        let path = args+            .get("path")+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty());+        if let Some(path) = path {+            return sw.obj("GetOpenDocumentByName", &[&Var::bstr(path)])?.ok_or_else(|| {+                HostError::coded(+                    "document_not_open",+                    format!("document not open: {path} (swx_docs lists the open titles and paths)"),+                )+            });+        }+        let title = args+            .get("docName")+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .or_else(|| args.get("name").and_then(|v| v.as_str()).filter(|s| !s.is_empty()));+        if let Some(title) = title {+            // A failed enumeration must NEVER be read as "that document is not+            // open" — `documents()` raises docs_enumeration_failed instead.+            let mut hits: Vec<Disp> = Vec::new();+            for doc in Self::documents(&sw)? {+                if doc.string("GetTitle", &[]).as_deref() == Some(title) {+                    hits.push(doc);+                }+            }+            return match hits.len() {+                1 => Ok(hits.remove(0)),+                0 => Err(HostError::coded(+                    "document_not_open",+                    format!("document not open: {title} (swx_docs lists the open titles and paths)"),+                )),+                n => Err(HostError::coded(+                    "ambiguous_target",+                    format!(+                        "{n} open documents are titled '{title}' — name the one you mean by path"+                    ),+                )),+            };+        }+        sw.obj("ActiveDoc", &[])?.ok_or_else(|| {+            HostError::coded(+                "no_target_document",+                "no active document (pass path or name, or swx_open one)",+            )+        })+    }++    /// Custom properties for one configuration scope ("" = file level).+    fn custom_props(doc: &Disp, configuration: &str) -> Value {+        let mut out = Map::new();+        let mgr = match doc+            .obj("Extension", &[])+            .ok()+            .flatten()+            .and_then(|ext| ext.obj("CustomPropertyManager", &[&Var::bstr(configuration)]).ok().flatten())+        {+            Some(m) => m,+            None => return Value::Object(out),+        };+        let names = match mgr.call("GetNames", &[]) {+            Ok(v) => v,+            Err(_) => return Value::Object(out),+        };+        for name_var in names.as_array() {+            let name = match name_var.as_string() {+                Some(n) if !n.is_empty() => n,+                _ => continue,+            };+            let mut value = BSTR::new();+            let mut resolved = BSTR::new();+            let call = mgr.call(+                "Get4",+                &[+                    &Var::bstr(&name),+                    &Var::boolean(false),+                    &Var::byref_bstr(&mut value as *mut BSTR),+                    &Var::byref_bstr(&mut resolved as *mut BSTR),+                ],+            );+            match call {+                Ok(_) => {+                    out.insert(+                        name,+                        json!({"value": value.to_string(), "resolved": resolved.to_string()}),+                    );+                }+                Err(e) => {+                    out.insert(name, json!({"value": null, "resolved": null, "error": e.message}));+                }+            }+        }+        Value::Object(out)+    }++    fn cmd_status(&mut self) -> Result<Value, HostError> {+        let mut running = false;+        let mut version = Value::Null;+        let mut open_docs = 0usize;+        if let Ok(clsid) = Self::clsid() {+            unsafe {+                let mut unk = None;+                if GetActiveObject(&clsid, None, &mut unk).is_ok() {+                    if let Some(disp) = unk.and_then(|u| u.cast::<IDispatch>().ok()) {+                        let sw = Disp(disp);+                        running = true;+                        version = sw+                            .string("RevisionNumber", &[])+                            .map(Value::from)+                            .unwrap_or(Value::Null);+                        open_docs = sw.call("GetDocuments", &[]).map(|d| d.as_array().len()).unwrap_or(0);+                        self.sw = Some(sw);+                    }+                }+            }+        }+        Ok(json!({+            "running": running,+            "version": version,+            "openDocs": open_docs,+            "attached": self.sw.is_some(),+        }))+    }++    fn cmd_open(&mut self, args: &Value) -> Result<Value, HostError> {+        let path = args+            .get("path")+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .ok_or_else(|| HostError::msg("path is required"))?;+        if !std::path::Path::new(path).exists() {+            return Err(HostError::msg(format!("file not found: {path}")));+        }+        let type_id = doc_type_id(path).ok_or_else(|| {+            HostError::msg(format!(+                "not a SOLIDWORKS document: {} (want .sldprt/.sldasm/.slddrw)",+                std::path::Path::new(path)+                    .extension()+                    .map(|e| format!(".{}", e.to_string_lossy().to_lowercase()))+                    .unwrap_or_default()+            ))+        })?;+        let configuration =+            args.get("configuration").and_then(|v| v.as_str()).unwrap_or("").to_string();+        // LAUNCH IS THE SERVER'S DECISION, NOT THIS FUNCTION'S. `swx_open` used+        // to pass launch:true unconditionally, which made it a second road to+        // CoCreateInstance that walked straight past the edition check — on a+        // Connected install that puts the "must be launched from the+        // 3DEXPERIENCE Platform" modal on the user's screen and leaves a dead+        // process behind. The server decides with `may_launch` and says so here.+        let launch = args.get("launch").and_then(|v| v.as_bool()).unwrap_or(false);+        let sw = self.app(launch, true)?;++        let mut errors = 0i32;+        let mut warnings = 0i32;+        // swOpenDocOptions_Silent = 1, swOpenDocOptions_ReadOnly = 2.+        //+        // Silent alone takes a WRITE LOCK on the user's file — nobody else can+        // open it for editing while the bridge holds it — and an older-version+        // document is converted in memory, which marks it dirty and makes+        // SOLIDWORKS offer to save on close. Since the default posture refuses+        // to write to a document the bridge did not create anyway, holding a+        // write lock on it buys nothing; `readOnly` is therefore the default+        // here, and a caller that means to edit says so.+        let read_only = args.get("readOnly").and_then(|v| v.as_bool()).unwrap_or(true);+        let open_options = if read_only { 1 | 2 } else { 1 };+        // NO fallback to the legacy OpenDoc: it has+        // no silent option and would let SOLIDWORKS raise the interactive open+        // dialog on an unattended machine — the exact thing this whole path+        // exists to prevent. Our byref marshalling is explicit here (unlike the+        // late-bound PowerShell it replaces), so the fallback bought nothing but+        // that risk. If OpenDoc6 fails, report it.+        let doc = sw+            .call(+                "OpenDoc6",+                &[+                    &Var::bstr(path),+                    &Var::i4(type_id),+                    &Var::i4(open_options),+                    &Var::bstr(&configuration),+                    &Var::byref_i4(&mut errors as *mut i32),+                    &Var::byref_i4(&mut warnings as *mut i32),+                ],+            )?+            .as_dispatch()+            .map(Disp)+            .ok_or_else(|| {+                HostError::msg(format!(+                    "SOLIDWORKS failed to open {path} (errors={errors} warnings={warnings})"+                ))+            })?;+        Ok(json!({+            "opened": Self::doc_info(&doc),+            "readOnly": read_only,+            "errors": errors,+            "warnings": warnings,+        }))+    }++    /// `SaveAs3` — the one call behind both export and save-as.+    ///+    /// TWO facts about it were learned the hard way on a live install, and both+    /// contradicted the port's original reading of the API docs:+    ///+    /// 1. It returns **swFileSaveError_e (a long), not a bool**: `0` means+    ///    SUCCESS. v0.2 read the return as a bool, so every successful export+    ///    reported failure while writing perfectly good bytes to disk.+    /// 2. The options flag matters. `swSaveAsOptions_Silent` (1) alone RENAMES+    ///    the open document to the export path — the user's `bracket.sldprt`+    ///    silently becomes `bracket.step` in memory. Exports therefore pass+    ///    `Silent|Copy` (1|2 = 3), which leaves the open document untouched;+    ///    only a deliberate `save_as` uses plain Silent.+    fn save_as3(doc: &Disp, out: &str, copy: bool) -> Result<i32, HostError> {+        // LAST LINE OF DEFENCE. The server checks this too, but every road to a+        // SaveAs3 — the export verbs, save_as, and the modelling DSL — passes+        // through here, and the DSL road skipped the server's check once+        // already. SaveAs3 reads the format off the extension, so this is the+        // one place that sees what SOLIDWORKS will actually be asked to do.+        if let Some(bad) = crate::verbs3::blocked_by_extension(out) {+            return Err(HostError::msg(format!(+                "refusing to write {out}: .{bad} (VRML) raises a modal option sheet that hangs \+                 SOLIDWORKS until the com-host watchdog kills it, and leaves the dialog on the \+                 user's screen"+            )));+        }+        if let Some(parent) = std::path::Path::new(out).parent() {+            if !parent.as_os_str().is_empty() {+                let _ = std::fs::create_dir_all(parent);+            }+        }+        // swSaveAsOptions_Silent = 1, swSaveAsOptions_Copy = 2+        let options = if copy { 1 | 2 } else { 1 };+        let r = doc.call("SaveAs3", &[&Var::bstr(out), &Var::i4(0), &Var::i4(options)])?;+        // Belt and braces: a build that ever DOES return a bool here still reads+        // correctly (true -> 0 = clean, false -> a generic save error).+        Ok(match r.as_i32() {+            Some(code) => code,+            None => {+                if r.as_bool() == Some(true) {+                    0+                } else {+                    1+                }+            }+        })+    }++    /// swFileSaveError_e, spelled out. Reported verbatim so a caller can act on+    /// the difference between "this format is not available" and "the file is+    /// locked".+    fn save_error_text(code: i32) -> String {+        if code == 0 {+            return "ok".into();+        }+        let bits: &[(i32, &str)] = &[+            (1, "generic save error"),+            (2, "read-only save error"),+            (4, "file name empty"),+            (8, "file name contains an @ sign"),+            (16, "file lock error"),+            (32, "file save format not available"),+            (128, "invalid file extension"),+            (256, "format not supported for this document type"),+            (512, "file save as bad selection"),+            (1024, "file save as bad file name"),+        ];+        let named: Vec<&str> =+            bits.iter().filter(|(b, _)| code & b != 0).map(|(_, t)| *t).collect();+        if named.is_empty() {+            format!("swFileSaveError_e {code}")+        } else {+            format!("{} (swFileSaveError_e {code})", named.join(", "))+        }+    }++    fn cmd_export(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        let out = args+            .get("out")+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .ok_or_else(|| HostError::msg("out (destination path) is required"))?;+        let title_before = doc.string("GetTitle", &[]);+        let code = Self::save_as3(&doc, out, true)?;+        if code != 0 {+            return Err(HostError::msg(format!(+                "SOLIDWORKS refused to write {out}: {}. Formats verified on this install for a                  PART are STEP/STP, IGES, STL, X_T, X_B, SAT, 3MF, GLB, PLY, AMF, 3DXML, PNG,                  JPG, TIF and PDF; OBJ, DXF, DWG and U3D are refused for a part (DXF/DWG are                  drawing formats). VRML (.wrl) HANGS on a modal option sheet and is blocked by                  this bridge.",+                Self::save_error_text(code)+            )));+        }+        let bytes = std::fs::metadata(out).map(|m| m.len()).ok();+        // Copy mode should leave the document's identity alone; assert it, because+        // silently renaming the user's open document is the worst failure this+        // verb has.+        let title_after = doc.string("GetTitle", &[]);+        let renamed = title_before.is_some() && title_before != title_after;+        Ok(json!({+            "exported": out,+            "bytes": bytes,+            "fileSizeKB": bytes.map(|b| (b as f64 / 1024.0).round() as u64),+            "saveErrorCode": code,+            "documentRenamed": renamed,+            "doc": Self::doc_info(&doc),+        }))+    }++    fn cmd_bom(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        if doc.int("GetType", &[]).unwrap_or(0) != DOC_ASSEMBLY {+            return Err(HostError::msg("BOM needs an assembly (.sldasm) as the target document"));+        }+        let top_only = args.get("topLevelOnly").and_then(|v| v.as_bool()).unwrap_or(false);+        let comps = doc.call("GetComponents", &[&Var::boolean(top_only)])?;++        // Aggregate per (file, configuration): that pair IS the BOM line item.+        let mut keys: Vec<String> = Vec::new();+        let mut rows: Vec<Map<String, Value>> = Vec::new();+        let mut skipped = 0usize;+        for comp in comps.as_array() {+            let comp = match comp.as_dispatch().map(Disp) {+                Some(c) => c,+                None => continue,+            };+            // swComponentSuppressionState_e: 0 = fully suppressed+            if comp.int("GetSuppression", &[]) == Some(0) {+                skipped += 1;+                continue;+            }+            let file = comp.string("GetPathName", &[]).unwrap_or_default();+            let configuration = comp.string("ReferencedConfiguration", &[]).unwrap_or_default();+            let key = format!("{file}|{configuration}");+            if let Some(i) = keys.iter().position(|k| *k == key) {+                let q = rows[i].get("quantity").and_then(|v| v.as_i64()).unwrap_or(0) + 1;+                rows[i].insert("quantity".into(), Value::from(q));+                continue;+            }+            let props = comp+                .obj("GetModelDoc2", &[])+                .ok()+                .flatten()+                .map(|d| Self::custom_props(&d, ""))+                .unwrap_or_else(|| json!({}));+            let mut row = Map::new();+            row.insert("file".into(), Value::from(file.clone()));+            row.insert("name".into(), Value::from(super::mock::file_stem(&file).to_string()));+            row.insert("configuration".into(), Value::from(configuration));+            row.insert("quantity".into(), Value::from(1));+            row.insert("suppressedInstances".into(), Value::from(0));+            row.insert("properties".into(), props);+            keys.push(key);+            rows.push(row);+        }+        if skipped > 0 {+            // One line, after the loop — never one per component.+            super::host::log(&format!("bom: {skipped} suppressed component(s) excluded"));+        }+        let rows: Vec<Value> = rows.into_iter().map(Value::Object).collect();+        Ok(json!({+            "doc": Self::doc_info(&doc),+            "topLevelOnly": top_only,+            "rowCount": rows.len(),+            "rows": rows,+        }))+    }++    fn cmd_interference(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        if doc.int("GetType", &[]).unwrap_or(0) != DOC_ASSEMBLY {+            return Err(HostError::msg("interference detection needs an assembly (.sldasm)"));+        }+        // LIVE FINDING (2026-09-02): `InterferenceDetectionManager` is a member of+        // IAssemblyDoc, NOT of IModelDocExtension. v0.2 looked for it on the+        // Extension and every interference check failed with "unavailable".+        let mgr = doc+            .obj("InterferenceDetectionManager", &[])?+            .ok_or_else(|| HostError::msg(+                "InterferenceDetectionManager unavailable (it is a member of the assembly \+                 document; make sure the target really is an .sldasm)",+            ))?;++        let coincidence =+            args.get("coincidenceCounts").and_then(|v| v.as_bool()).unwrap_or(false);++        // A drop guard, not a bare trailing statement: Done() must run on EVERY+        // exit — an early `?`, AND an unwinding panic. Leaving the interference+        // session open parks SOLIDWORKS in a modal-ish state, so this is exactly+        // the invariant that must survive the unexpected.+        struct DoneGuard(Disp);+        impl Drop for DoneGuard {+            fn drop(&mut self) {+                let _ = self.0.call("Done", &[]);+            }+        }+        let _guard = DoneGuard(mgr.clone());++        // The puts come AFTER the guard is armed. They were before it, so a+        // panic inside one would have leaked the interference session — which is+        // the exact state the guard exists to prevent.+        mgr.try_put("UseTransform", &Var::boolean(true));+        mgr.try_put("TreatCoincidenceAsInterference", &Var::boolean(coincidence));+        mgr.try_put("MakeInterferingPartsTransparent", &Var::boolean(false));++        let found = mgr.call("GetInterferences", &[])?;+        let count = mgr.int("GetInterferenceCount", &[]).unwrap_or(0);+        let mut out = Vec::new();+        for item in found.as_array() {+            let item = match item.as_dispatch().map(Disp) {+                Some(i) => i,+                None => continue,+            };+            let names: Vec<Value> = item+                .call("Components", &[])+                .map(|c| {+                    c.as_array()+                        .iter()+                        .filter_map(|v| v.as_dispatch().map(Disp))+                        .filter_map(|c| c.string("Name2", &[]))+                        .map(Value::from)+                        .collect()+                })+                .unwrap_or_default();+            out.push(json!({"components": names, "volumeM3": item.float("Volume", &[])}));+        }+        Ok(json!({"doc": Self::doc_info(&doc), "count": count, "interferences": out}))+    }++    fn cmd_rebuild_check(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        // Top-level rebuild, not just the active configuration.+        let rebuilt = doc.call("ForceRebuild3", &[&Var::boolean(false)])?.as_bool().unwrap_or(false);+        let mut bad = Vec::new();+        let mut unreadable = 0usize;+        let mut feature = doc.obj("FirstFeature", &[]).ok().flatten();+        // A feature tree is finite, but a broken GetNextFeature must not spin+        // this process forever.+        let mut guard = 0;+        while let Some(f) = feature {+            guard += 1;+            if guard > 20_000 {+                super::host::log("rebuild_check: feature walk hit the 20000 guard");+                break;+            }+            // LIVE FINDING (2026-09-02): `GetErrorCode2` is present on the+            // dispatch interface but rejects every arity we can express+            // late-bound (it wants a single BYREF BSTR out-param), so v0.2's+            // two-argument call failed for EVERY feature — which made a clean,+            // empty document report 16 "unreadable" errors. The plain+            // `GetErrorCode()` takes no arguments and answers correctly.+            match f.call("GetErrorCode", &[]) {+                Ok(code) => {+                    if code.as_i32().unwrap_or(0) != 0 {+                        bad.push(json!({+                            "feature": f.string("Name", &[]),+                            "type": f.string("GetTypeName2", &[]),+                            "code": code.as_i32(),+                            "status": Value::Null,+                        }));+                    }+                }+                Err(_) => {+                    unreadable += 1;+                    bad.push(json!({+                        "feature": f.string("Name", &[]),+                        "type": f.string("GetTypeName2", &[]),+                        "code": Value::Null,+                        "status": "error code could not be read",+                    }));+                }+            }+            feature = f.obj("GetNextFeature", &[]).ok().flatten();+        }+        // The app's own "what's wrong" census, as a cross-check on the walk.+        let whats_wrong = doc+            .obj("Extension", &[])+            .ok()+            .flatten()+            .and_then(|e| e.int("GetWhatsWrongCount", &[]));+        Ok(json!({+            "doc": Self::doc_info(&doc),+            "rebuilt": rebuilt,+            "featureErrors": bad,+            "errorCount": bad.len(),+            "unreadableFeatures": unreadable,+            "whatsWrongCount": whats_wrong,+            "featuresWalked": guard,+        }))+    }++    fn cmd_pack_and_go(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        let dest = args+            .get("out")+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .ok_or_else(|| HostError::msg("out (destination directory) is required"))?;+        // AFTER authorization, never before: creating the directory first left+        // one on the user's disk even when the write was refused.+        std::fs::create_dir_all(dest)+            .map_err(|e| HostError::msg(format!("cannot create {dest}: {e}")))?;+        let ext = doc.obj("Extension", &[])?.ok_or_else(|| HostError::msg("no ModelDocExtension"))?;+        let png = ext+            .obj("GetPackAndGo", &[])?+            .ok_or_else(|| HostError::msg("GetPackAndGo returned nothing"))?;+        png.try_put(+            "IncludeDrawings",+            &Var::boolean(args.get("includeDrawings").and_then(|v| v.as_bool()).unwrap_or(false)),+        );+        png.call("SetSaveToName", &[&Var::boolean(true), &Var::bstr(dest)])?;++        let mut files_v = VARIANT::default();+        let mut flags_v = VARIANT::default();+        let _ = png.call(+            "GetDocumentSaveToNames",+            &[+                &Var::byref_variant(&mut files_v as *mut VARIANT),+                &Var::byref_variant(&mut flags_v as *mut VARIANT),+            ],+        );+        let files: Vec<Value> =+            Var(files_v).as_array().iter().map(|v| v.to_json()).collect();+        let statuses: Vec<Value> =+            ext.call("SavePackAndGo", &[&Var::dispatch(&png.0)])?.as_array().iter().map(|v| v.to_json()).collect();+        Ok(json!({+            "doc": Self::doc_info(&doc),+            "out": dest,+            "files": files,+            "statuses": statuses,+        }))+    }++    fn cmd_mass_properties(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        let ext = doc.obj("Extension", &[])?.ok_or_else(|| HostError::msg("no ModelDocExtension"))?;+        let mp = ext.obj("CreateMassProperty", &[])?.ok_or_else(|| {+            HostError::msg("CreateMassProperty returned nothing (drawings have no mass properties)")+        })?;+        if let Some(system_units) = args.get("useSystemUnits").and_then(|v| v.as_bool()) {+            mp.try_put("UseSystemUnits", &Var::boolean(system_units));+        }+        let center: Vec<Value> =+            mp.call("CenterOfMass", &[]).map(|v| v.as_array().iter().map(|e| e.to_json()).collect())+                .unwrap_or_default();+        // Parts only; assemblies throw — best-effort, never fatal.+        let bbox: Value = doc+            .call("GetPartBox", &[&Var::boolean(true)])+            .map(|v| Value::Array(v.as_array().iter().map(|e| e.to_json()).collect()))+            .unwrap_or(Value::Null);+        Ok(json!({+            "doc": Self::doc_info(&doc),+            "massKg": mp.float("Mass", &[]),+            "volumeM3": mp.float("Volume", &[]),+            "surfaceAreaM2": mp.float("SurfaceArea", &[]),+            "density": mp.float("Density", &[]),+            "centerOfMass": center,+            "boundingBox": bbox,+        }))+    }++    /// The escape hatch: a dotted call chain rooted at `$sw` or `$doc`.+    ///+    /// NOT an arbitrary script host — there is no PowerShell in this bridge any+    /// more, and there is no eval in Rust. What it supports is exactly what+    /// prototyping a new verb needs: `$sw.Member.Member(args...)` with string,+    /// number and boolean literals.+    fn cmd_eval(&mut self, args: &Value) -> Result<Value, HostError> {+        let expr = args.get("expr").and_then(|v| v.as_str()).unwrap_or("").trim().to_string();+        let (root_name, segments) = parse_chain(&expr)?;+        let mut current = match root_name.as_str() {+            "sw" => self.app(false, true)?,+            "doc" => self.resolve(&json!({}))?,+            other => {+                return Err(HostError::msg(format!(+                    "unknown root '${other}' — use $sw (the application) or $doc (the active document)"+                )))+            }+        };+        let mut last: Option<Var> = None;+        for (i, seg) in segments.iter().enumerate() {+            let owned: Vec<Var> = seg.args.iter().map(literal_var).collect();+            let refs: Vec<&Var> = owned.iter().collect();+            let value = current.call(&seg.name, &refs)?;+            if i + 1 < segments.len() {+                current = value.as_dispatch().map(Disp).ok_or_else(|| {+                    HostError::msg(format!(+                        "'{}' did not return an object, so '.{}' has nothing to run on",+                        seg.name,+                        segments[i + 1].name+                    ))+                })?;+            } else {+                last = Some(value);+            }+        }+        let value = last.unwrap_or_else(Var::empty);+        Ok(json!({+            "result": value.as_string().unwrap_or_default(),+            "value": value.to_json(),+            "expr": expr,+            "supports": "$sw / $doc rooted call chains with string, number and boolean literals",+        }))+    }+}++/// A parsed literal as a COM argument.+fn literal_var(l: &Literal) -> Var {+    match l {+        Literal::Str(s) => Var::bstr(s),+        Literal::Int(i) => Var::i4(*i),+        Literal::Num(f) => Var::r8(*f),+        Literal::Bool(b) => Var::boolean(*b),+        // VT_EMPTY is how "argument omitted" reaches a late-bound optional+        // [in] object parameter — SelectByID2's callout, LoadFile4's import data.+        Literal::Null => Var::empty(),+    }+}++impl ComBackend {+    /// Remember a document THIS HOST created, and persist it.+    fn remember_created(&mut self, doc: &Disp) {+        let title = doc.string("GetTitle", &[]).unwrap_or_default();+        let path = doc.string("GetPathName", &[]).filter(|s| !s.is_empty());+        self.remember_created_parts(title, path);+    }++    /// The same, from the `{title, path}` a result carries — the form the+    /// dispatch loop can apply to any command without knowing what it does.+    fn remember_created_parts(&mut self, title: String, path: Option<String>) {+        if title.is_empty() {+            return;+        }+        // A record from a previous SOLIDWORKS session is discarded the moment we+        // learn the current one, rather than being inherited.+        let session = self.current_session();+        if self.created_session != session {+            self.created.clear();+            self.created_session = session;+        }+        // Evict by IDENTITY, not by title. Keying this on the title meant an+        // imported document displaced the record of a SAVED one that happened to+        // share its name — which is exactly what `swx_import` of a STEP beside+        // the suite's own part produced — and the bridge then disowned the+        // document it had created.+        match &path {+            Some(p) => self.created.retain(|(t, cp)| {+                !cp.as_deref().map(|q| crate::verbs::same_path(q, p)).unwrap_or(false)+                    && !(cp.is_none() && *t == title)+            }),+            None => self.created.retain(|(t, cp)| !(cp.is_none() && *t == title)),+        }+        self.created.push((title, path));+        crate::comhost::created_store::save_session(self.created_session, &self.created);+    }++    /// SOLIDWORKS' own process id, or None when it cannot be asked.+    fn current_session(&self) -> Option<i64> {+        self.sw.as_ref().and_then(|sw| sw.int("GetProcessID", &[])).map(i64::from)+    }++    /// Does this host believe it created `doc`? Path where there is one, title+    /// otherwise — the same identity rule the server uses, reached independently.+    fn host_owns(&self, doc: &Disp) -> bool {+        // FAIL CLOSED across sessions: a stored record whose session does not+        // match the running SOLIDWORKS (a crash, a kill, the user quitting) is+        // not evidence of anything.+        let now = self.current_session();+        if now.is_none() || now != self.created_session {+            return false;+        }+        let title = doc.string("GetTitle", &[]).unwrap_or_default();+        let path = doc.string("GetPathName", &[]).filter(|s| !s.is_empty());+        match &path {+            Some(p) => self+                .created+                .iter()+                .any(|(_, cp)| cp.as_deref().map(|q| crate::verbs::same_path(q, p)).unwrap_or(false)),+            None => self.created.iter().any(|(t, cp)| cp.is_none() && *t == title),+        }+    }++    /// Which document a mutating command is aimed at, resolved the way the+    /// command itself will resolve it.+    fn authorize_target(&mut self, cmd: &str, args: &Value) -> Option<Disp> {+        // `run_script` names its document with `targetDocument`; everything else+        // uses the docName/path/name keys `resolve` already understands.+        if cmd == "run_script" {+            if let Some(t) = args.get("targetDocument").and_then(|v| v.as_str()).filter(|s| !s.is_empty()) {+                return self.resolve(&json!({"docName": t})).ok();+            }+            // A script that starts by creating its own document touches nothing+            // that exists yet.+            if let Ok(ops) = crate::script::parse(&args.get("script").cloned().unwrap_or(Value::Null)) {+                if matches!(ops.first(), Some(crate::script::Op::NewPart | crate::script::Op::NewAssembly)) {+                    return None;+                }+            }+        }+        self.resolve(args).ok()+    }++    /// THE HOST'S OWN VETO. Called before every mutating COM call.+    ///+    /// It re-decides the same two questions the server did — is the document+    /// ours, and does the destination already exist — from its OWN records and+    /// its OWN view of the filesystem, and it reads the process-level opt-in+    /// from the ENVIRONMENT it inherited rather than from anything the server+    /// sent. So the server cannot fabricate the escape: `allowUserWrites` in+    /// the request is necessary but never sufficient.+    /// Run a `.lnk` through the shell, detached.+    ///+    /// `raw_arg` rather than `arg`: `cmd.exe` does its own command-line parsing,+    /// and Rust's argument escaper is written for the CRT convention, so a path+    /// with a space in it (which every one of these has) arrives at `start`+    /// mis-split. DETACHED_PROCESS | CREATE_NO_WINDOW so no console flashes on+    /// the user's desktop — this bridge never puts a window on screen.+    #[cfg(windows)]+    fn spawn_shortcut(shortcut: &str) -> Result<(), HostError> {+        use std::os::windows::process::CommandExt;+        const DETACHED_PROCESS: u32 = 0x0000_0008;+        const CREATE_NO_WINDOW: u32 = 0x0800_0000;+        if shortcut.contains('"') {+            return Err(HostError::coded(+                "host_app_launch_blocked",+                "the shortcut path contains a quote character and will not be run",+            ));+        }+        std::process::Command::new("cmd.exe")+            .raw_arg(format!("/c start \"\" \"{shortcut}\""))+            .creation_flags(DETACHED_PROCESS | CREATE_NO_WINDOW)+            .spawn()+            .map(|_| ())+            .map_err(|e| {+                HostError::coded(+                    "host_app_launch_blocked",+                    format!("could not invoke the shortcut: {e}"),+                )+            })+    }++    fn authorize(+        &self,+        args: &Value,+        what: &str,+        doc: Option<&Disp>,+        destination: Option<&str>,+    ) -> Result<(), HostError> {+        self.authorize_inner(args, what, doc, destination, false)+    }++    /// `always` forces the check even with no document and no destination — for+    /// the commands whose harm IS the state change (quitting, closing everything).+    fn authorize_inner(+        &self,+        args: &Value,+        what: &str,+        doc: Option<&Disp>,+        destination: Option<&str>,+        always: bool,+    ) -> Result<(), HostError> {+        let clobbers = destination+            .map(|d| !d.is_empty() && std::path::Path::new(d).exists())+            .unwrap_or(false);+        let foreign = doc.map(|d| !self.host_owns(d)).unwrap_or(false);+        if !clobbers && !foreign && !always {+            return Ok(());+        }+        // THE FULL OPT-IN CHAIN, re-checked here from the SAME function the+        // server uses — env, plus allowUserWrites AND confirm AND a reason.+        //+        // This used to test `allowUserWrites` alone, which had two consequences,+        // both live-proven on 2026-09-03. It made the host's veto a WEAKER test+        // than the server's, so "two independent vetoes" was not true in the+        // direction that mattered; and because a `Grant` only carried that one+        // boolean, a verb that authorized a CLOSE and then sent the host a+        // payload without it was refused by the host even though the human had+        // authorized it in full. An escape hatch nobody can open is not a safety+        // property, it is a bug — Drew authorized closing his own documents and+        // the bridge told him no.+        let env_on = crate::writes::user_writes_enabled();+        let missing = crate::writes::missing_opt_in(args);+        if env_on && missing.is_empty() {+            return Ok(());+        }+        Err(HostError::detailed(+            format!(+                "the com host refuses to {what}: {}{}",+                if foreign { "this document was not created by this bridge" } else { "" },+                if clobbers {+                    format!(+                        "{}the destination already exists ({})",+                        if foreign { ", and " } else { "" },+                        destination.unwrap_or("")+                    )+                } else {+                    String::new()+                }+            ),+            format!(+                "This is the com host's OWN check, not the server's — it keeps its own record of \+                 the documents it created and reads {} from the environment it was started with. \+                 A server-side decision alone is a claim; two independent vetoes is the \+                 guarantee — and the host applies the IDENTICAL test, so what the user \+                 authorizes in full the host allows in full. envOptIn={env_on} missing=[{}]",+                crate::writes::ENV_ALLOW,+                missing.join(", ")+            ),+        ))+    }+}++impl Backend for ComBackend {+    fn commands(&self) -> &'static [&'static str] {+        COMMANDS+    }++    fn register_created(&mut self, doc: &Value) {+        let title = doc.get("title").and_then(|t| t.as_str()).unwrap_or("").to_string();+        let path = doc+            .get("path")+            .and_then(|p| p.as_str())+            .filter(|s| !s.is_empty())+            .map(String::from);+        self.remember_created_parts(title, path);+    }++    fn authorize_command(&mut self, cmd: &str, args: &Value) -> Result<(), HostError> {+        // `eval` can reach ANY COM member, so the read allowlist is re-checked+        // HERE as well as on the server. It was server-only, which made the one+        // verb that can call anything the one with no host-side guard.+        if cmd == "eval" {+            let expr = args.get("expr").and_then(|v| v.as_str()).unwrap_or("");+            if let Some((member, why)) = super::expr::refused_member(expr) {+                return Err(HostError::detailed(+                    format!("the com host refuses to evaluate '{member}': {why}"),+                    "This is the host's own re-check of the read allowlist, not the server's. \+                     swx_com_eval evaluates reads only."+                        .to_string(),+                ));+            }+            return Ok(());+        }+        // Quitting, and closing everything, are harmful BY THEMSELVES — there is+        // no document to be foreign and no destination to clobber, so they are+        // gated unconditionally.+        if matches!(cmd, "stop" | "close_all_documents") {+            return self.authorize_inner(args, "quit or close the user's SOLIDWORKS session", None, None, true);+        }+        // An EXPORT (and a save_as in Copy mode) writes a NEW file and leaves+        // the document alone, so reading the user's part to produce one is not a+        // write to their data — only the destination has to be clear. Applying+        // the ownership rule here as well would refuse the single most useful+        // thing this bridge does.+        let copy_only = cmd == "export"+            || (cmd == "save_as" && args.get("copy").and_then(|v| v.as_bool()).unwrap_or(false));+        // `open` names a file that is not open yet, so there is no Disp to+        // resolve — ownership is decided on the PATH against the host's own+        // record, the same identity rule everywhere else uses.+        if cmd == "open" {+            let path = args.get("path").and_then(|v| v.as_str()).unwrap_or("");+            let ours = self+                .created+                .iter()+                .any(|(_, p)| p.as_deref().map(|q| crate::verbs::same_path(q, path)).unwrap_or(false));+            if !ours {+                return self.authorize_inner(args, "open this document FOR WRITING", None, None, true);+            }+            return Ok(());+        }+        let doc: Option<Disp> = if copy_only { None } else { self.authorize_target(cmd, args) };+        let destination = args+            .get("out")+            .or_else(|| args.get("outputPath"))+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty());+        self.authorize(args, cmd, doc.as_ref(), destination)+    }++    fn call(&mut self, cmd: &str, args: &Value) -> Result<Value, HostError> {+        match cmd {+            "ping" => Ok(json!({"pong": true, "pid": std::process::id()})),++            "status" => self.cmd_status(),++            "start" => {+                let visible = args.get("visible").and_then(|v| v.as_bool()).unwrap_or(true);+                // `launch` is decided by the SERVER, which knows the edition. See+                // `app()` and the swx_start handler: SOLIDWORKS Connected cannot+                // be launched programmatically at all.+                let launch = args.get("launch").and_then(|v| v.as_bool()).unwrap_or(false);+                let sw = self.app(launch, visible)?;+                Ok(json!({+                    "started": true,+                    "version": sw.string("RevisionNumber", &[]),+                    "wasLaunched": self.was_launched,+                    "mainHwnd": Self::main_hwnd(&sw),+                    "processId": sw.int("GetProcessID", &[]),+                }))+            }++            // THE SANCTIONED LAUNCH for SOLIDWORKS Connected.+            //+            // Invoke the shortcut the 3DEXPERIENCE Platform installed, which+            // runs CATSTART.exe -> SWXDesktopLauncher.exe with the tenant and+            // registry arguments baked into it. We do NOT assemble that command+            // line ourselves: the tenant is the user's, and a hand-built+            // launcher invocation would be a guess. `cmd /c start` is used+            // rather than CreateProcess because a `.lnk` is a shell artefact —+            // only the shell resolves it.+            //+            // Fire and forget, then a SHORT attach poll. A Connected cold start+            // runs one to three minutes and the com host must not be held for+            // that long: it is the only channel the server has, so blocking it+            // would freeze swx_progress and every other verb. The server polls+            // instead, and this call answers with what is true right now.+            "launch_shortcut" => {+                let shortcut = args.get("shortcut").and_then(|v| v.as_str()).unwrap_or("");+                if shortcut.is_empty() {+                    return Err(HostError::coded(+                        "host_app_launch_blocked",+                        "no shortcut was given to invoke",+                    ));+                }+                // Already up: invoking the shortcut again would raise a second+                // window (or the Platform's "already running" notice) on the+                // user's screen for no reason.+                if let Ok(sw) = self.app(false, true) {+                    return Ok(json!({+                        "invoked": false,+                        "attached": true,+                        "alreadyRunning": true,+                        "version": sw.string("RevisionNumber", &[]),+                    }));+                }+                Self::spawn_shortcut(shortcut)?;+                // One brief look, so a warm start reports attached immediately+                // instead of making the caller poll for something already true.+                let attached = self.app(false, true).is_ok();+                Ok(json!({+                    "invoked": true,+                    "attached": attached,+                    "shortcut": shortcut,+                    "version": if attached {+                        self.app(false, true).ok().and_then(|sw| sw.string("RevisionNumber", &[])).map(Value::from).unwrap_or(Value::Null)+                    } else {+                        Value::Null+                    },+                }))+            }++            "stop" => {+                let sw = match self.app(false, true) {+                    Ok(sw) => sw,+                    Err(_) => return Ok(json!({"stopped": false, "reason": "not running"})),+                };+                // ExitApp tears down the very COM server we are calling it on, so+                // the outgoing call often comes back as an RPC disconnect+                // (RPC_E_SERVER_DIED / "server is not available"). That IS the+                // success case — the app quit — so it must not be reported as a+                // failure. A genuinely different error still surfaces.+                let mut disconnect: Option<String> = None;+                if let Err(e) = sw.call("ExitApp", &[]) {+                    let d = e.detail.as_deref().unwrap_or("");+                    // ONLY the specific HRESULTs that mean "the object we were+                    // calling has gone away". The first version also matched any+                    // message containing "server" or "rpc", which would report+                    // stopped:true for a completely unrelated failure with+                    // SOLIDWORKS still on screen — a lie the caller then acts on.+                    let disconnected = [+                        "0x800706BA", // RPC_S_SERVER_UNAVAILABLE+                        "0x80010108", // RPC_E_DISCONNECTED+                        "0x800706BE", // RPC_S_CALL_FAILED+                        "0x800706BF", // RPC_S_CALL_FAILED_DNE+                        "0x80010012", // CO_E_OBJNOTCONNECTED+                        "0x80010105", // RPC_E_SERVERFAULT+                    ]+                    .iter()+                    .any(|code| d.contains(code));+                    if !disconnected {+                        return Err(e);+                    }+                    disconnect = Some(d.to_string());+                }+                self.sw = None;+                self.was_launched = false;+                // The session is over: SOLIDWORKS restarts its Part numbering, so+                // no remembered title can be trusted into the next one.+                self.created.clear();+                crate::comhost::created_store::clear();+                // VERIFY. ExitApp returning cleanly is not proof the application+                // quit; a re-attach that still succeeds means it did not.+                let still_up = Self::clsid()+                    .ok()+                    .map(|clsid| unsafe {+                        let mut unk = None;+                        GetActiveObject(&clsid, None, &mut unk).is_ok() && unk.is_some()+                    })+                    .unwrap_or(false);+                Ok(json!({+                    "stopped": !still_up,+                    "stillRunning": still_up,+                    "rpcDisconnect": disconnect,+                }))+            }++            "docs" => {+                let sw = self.app(false, true)?;+                let docs: Vec<Value> =+                    Self::documents(&sw)?.iter().map(Self::doc_info).collect();+                let active =+                    sw.obj("ActiveDoc", &[])?.map(|d| Self::doc_info(&d)).unwrap_or(Value::Null);+                Ok(json!({"docs": docs, "active": active}))+            }++            "open" => self.cmd_open(args),++            "close_doc" => {+                let sw = self.app(false, true)?;+                let doc = self.resolve(args)?;+                let title = doc.string("GetTitle", &[]).unwrap_or_default();+                if args.get("save").and_then(|v| v.as_bool()).unwrap_or(false) {+                    // close_doc{save:true} is a WRITE, and it is the same Save3+                    // the gated `save` command makes.+                    let (mut e, mut w) = (0i32, 0i32);+                    doc.call(+                        "Save3",+                        &[+                            &Var::i4(1),+                            &Var::byref_i4(&mut e as *mut i32),+                            &Var::byref_i4(&mut w as *mut i32),+                        ],+                    )?;+                }+                sw.call("CloseDoc", &[&Var::bstr(&title)])?;+                // A closed document is no longer ours: the server prunes its+                // registry the same way, and the two vetoes must not disagree+                // about who owns what.+                self.created.retain(|(t, _)| *t != title);+                crate::comhost::created_store::save_session(self.created_session, &self.created);+                Ok(json!({"closed": title}))+            }++            "save" => {+                let doc = self.resolve(args)?;+                let (mut errors, mut warnings) = (0i32, 0i32);+                // swSaveAsOptions_Silent = 1+                let saved = doc+                    .call(+                        "Save3",+                        &[+                            &Var::i4(1),+                            &Var::byref_i4(&mut errors as *mut i32),+                            &Var::byref_i4(&mut warnings as *mut i32),+                        ],+                    )?+                    .as_bool()+                    .unwrap_or(false);+                Ok(json!({+                    "saved": saved,+                    "errors": errors,+                    "warnings": warnings,+                    "doc": Self::doc_info(&doc),+                }))+            }++            "export" => self.cmd_export(args),++            "props_get" => {+                let doc = self.resolve(args)?;+                let configuration =+                    args.get("configuration").and_then(|v| v.as_str()).unwrap_or("");+                let configurations: Vec<Value> = doc+                    .call("GetConfigurationNames", &[])+                    .map(|v| v.as_array().iter().map(|e| e.to_json()).collect())+                    .unwrap_or_default();+                Ok(json!({+                    "doc": Self::doc_info(&doc),+                    "configuration": configuration,+                    "properties": Self::custom_props(&doc, configuration),+                    "configurations": configurations,+                }))+            }++            "props_set" => {+                let doc = self.resolve(args)?;+                let configuration =+                    args.get("configuration").and_then(|v| v.as_str()).unwrap_or("");+                let mgr = doc+                    .obj("Extension", &[])?+                    .and_then(|e| e.obj("CustomPropertyManager", &[&Var::bstr(configuration)]).ok().flatten())+                    .ok_or_else(|| HostError::msg("CustomPropertyManager unavailable"))?;+                let mut set = Map::new();+                let props = args.get("properties").and_then(|p| p.as_object()).cloned().unwrap_or_default();+                for (name, value) in props {+                    let text = match &value {+                        Value::String(s) => s.clone(),+                        other => other.to_string(),+                    };+                    // swCustomInfoText = 30; swCustomPropertyReplaceValue = 2+                    let r = mgr.call(+                        "Add3",+                        &[&Var::bstr(&name), &Var::i4(30), &Var::bstr(&text), &Var::i4(2)],+                    )?;+                    set.insert(name, r.as_i32().map(Value::from).unwrap_or(Value::Null));+                }+                Ok(json!({"doc": Self::doc_info(&doc), "set": Value::Object(set)}))+            }++            "mass_properties" => self.cmd_mass_properties(args),+            "bom" => self.cmd_bom(args),+            "interference" => self.cmd_interference(args),+            "rebuild_check" => self.cmd_rebuild_check(args),+            "pack_and_go" => self.cmd_pack_and_go(args),+            "eval" => self.cmd_eval(args),++            // v0.3+            "new_document" => self.cmd_new_document(args),+            "activate_document" => self.cmd_activate_document(args),+            "close_all_documents" => self.cmd_close_all_documents(args),+            "document_info" => self.cmd_document_info(args),+            "design_info" => self.cmd_design_info(args),+            "get_parameters" => self.cmd_get_parameters(args),+            "set_parameter" => self.cmd_set_parameter(args),+            "inspect_bodies" => self.cmd_inspect_bodies(args),+            "import" => self.cmd_import(args),+            "save_as" => self.cmd_save_as(args),+            "run_script" => self.cmd_run_script(args),+            "add_component" => self.cmd_add_component(args),+            "run_macro" => self.cmd_run_macro(args),+            "get_preferences" => self.cmd_get_preferences(args),+            "set_preference" => self.cmd_set_preference(args),+            "show" => self.cmd_show(args),+            "check_recovery" => self.cmd_check_recovery(),+            "app_state" => self.cmd_app_state(),+            "cloud_status" => self.cmd_cloud_status(),++            other => Err(HostError::msg(format!("unknown command: {other}"))),+        }+    }+}++// ── v0.3: the Fusion-parity surface ─────────────────────────────────────────+//+// Every call below was probed against a LIVE SOLIDWORKS Design Professional for+// Makers 2026 (3DEXPERIENCE R2026x, sldworks.exe 34.3.0) before it was written.+// Where a signature could NOT be proven live, the comment says so — that+// distinction is the whole point of the exercise, and it is reproduced verbatim+// in docs/FUSION-PARITY-REPORT.md.++impl ComBackend {+    /// The stock template for a document type. `GetDocumentTemplate` is the+    /// reliable route (proven live for all three types); the+    /// `GetUserPreferenceStringValue` defaults are the fallback.+    fn template_for(sw: &Disp, type_id: i32) -> Option<String> {+        let via_template = sw+            .call(+                "GetDocumentTemplate",+                &[&Var::i4(type_id), &Var::bstr(""), &Var::i4(0), &Var::r8(0.0), &Var::r8(0.0)],+            )+            .ok()+            .and_then(|v| v.as_string())+            .filter(|s| !s.is_empty());+        if via_template.is_some() {+            return via_template;+        }+        // swDefaultPartTemplate = 8, swDefaultAssemblyTemplate = 9,+        // swDefaultDrawingTemplate = 10 (all three verified live).+        let pref = match type_id {+            DOC_PART => 8,+            DOC_ASSEMBLY => 9,+            _ => 10,+        };+        sw.call("GetUserPreferenceStringValue", &[&Var::i4(pref)])+            .ok()+            .and_then(|v| v.as_string())+            .filter(|s| !s.is_empty())+    }++    fn type_id_from_name(name: &str) -> Result<i32, HostError> {+        match name.trim().to_lowercase().as_str() {+            "part" | "prt" | "sldprt" => Ok(DOC_PART),+            "assembly" | "asm" | "sldasm" => Ok(DOC_ASSEMBLY),+            "drawing" | "drw" | "slddrw" => Ok(DOC_DRAWING),+            other => Err(HostError::msg(format!(+                "unknown document type '{other}' — use part, assembly or drawing"+            ))),+        }+    }++    /// `swx_new_document`. LIVE-PROVEN recipe.+    ///+    /// `ISldWorks::NewPart()` HANGS on this install (>110s, killed by the+    /// watchdog), which is why this goes through `NewDocument(template,0,0,0)`+    /// with a template resolved at runtime instead of the convenience wrapper.+    fn cmd_new_document(&mut self, args: &Value) -> Result<Value, HostError> {+        let kind = args.get("type").and_then(|v| v.as_str()).unwrap_or("part");+        let type_id = Self::type_id_from_name(kind)?;+        let sw = self.app(false, true)?;+        let template = match args.get("template").and_then(|v| v.as_str()).filter(|s| !s.is_empty())+        {+            Some(t) => t.to_string(),+            None => Self::template_for(&sw, type_id).ok_or_else(|| {+                HostError::msg(format!(+                    "no {kind} template is configured in SOLIDWORKS (Tools > Options > File \+                     Locations > Document Templates) — pass `template` with an explicit \+                     .prtdot/.asmdot/.drwdot path"+                ))+            })?,+        };+        if !std::path::Path::new(&template).exists() {+            return Err(HostError::msg(format!("template not found on disk: {template}")));+        }+        let doc = sw+            .call(+                "NewDocument",+                &[&Var::bstr(&template), &Var::i4(0), &Var::r8(0.0), &Var::r8(0.0)],+            )?+            .as_dispatch()+            .map(Disp)+            .ok_or_else(|| {+                HostError::msg(format!(+                    "SOLIDWORKS created no document from {template} (is the template valid?)"+                ))+            })?;+        Ok(json!({"created": Self::doc_info(&doc), "template": template, "type": kind}))+    }++    /// `swx_activate_document`. Not provable live in this session (SOLIDWORKS+    /// Connected was down when this was written); the byref out-param is+    /// marshalled explicitly, and a failure is reported with what SOLIDWORKS+    /// said.+    fn cmd_activate_document(&mut self, args: &Value) -> Result<Value, HostError> {+        let name = args+            .get("name")+            .or_else(|| args.get("path"))+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .ok_or_else(|| HostError::msg("name (the document title, as swx_docs reports it) is required"))?;+        let sw = self.app(false, true)?;+        let mut errors = 0i32;+        // ActivateDoc3(Name, UseUserPreferences, Option, byref Errors).+        // swRebuildOnActivation_e: 0 = swDontRebuildActiveDoc.+        let doc = sw+            .call(+                "ActivateDoc3",+                &[+                    &Var::bstr(name),+                    &Var::boolean(false),+                    &Var::i4(0),+                    &Var::byref_i4(&mut errors as *mut i32),+                ],+            )?+            .as_dispatch()+            .map(Disp)+            .ok_or_else(|| {+                HostError::msg(format!(+                    "SOLIDWORKS could not activate '{name}' (errors={errors}) — swx_docs lists \+                     the titles that are actually open"+                ))+            })?;+        Ok(json!({"activeDocument": Self::doc_info(&doc), "errors": errors}))+    }++    /// Enumerate the open documents, and NEVER return an empty list the+    /// application itself contradicts.+    ///+    /// `GetDocuments` on a busy SOLIDWORKS hands back a null/empty VARIANT+    /// rather than an error, and `as_array()` turns that into an empty Vec. So+    /// `swx_docs` answered `success:true` with ZERO documents while 51 were+    /// open — twice, three minutes apart, with `GetDocumentCount` and+    /// `swx_state` both still saying 51. Everything downstream then drew a+    /// confident wrong conclusion from it: resolve-by-title said "no open+    /// document is titled 'Assem24'" and the ownership gate said "this bridge+    /// did not create it", for an assembly created seconds earlier.+    ///+    /// An empty list is only believed when the count agrees it is empty.+    fn documents(sw: &Disp) -> Result<Vec<Disp>, HostError> {+        let mut count = -1i32;+        for attempt in 0..4u64 {+            let docs: Vec<Disp> = sw+                .call("GetDocuments", &[])?+                .as_array()+                .iter()+                .filter_map(|v| v.as_dispatch().map(Disp))+                .collect();+            count = sw.int("GetDocumentCount", &[]).unwrap_or(-1);+            if !docs.is_empty() || count <= 0 {+                return Ok(docs);+            }+            std::thread::sleep(std::time::Duration::from_millis(150 * (attempt + 1)));+        }+        Err(HostError::coded(+            "docs_enumeration_failed",+            format!(+                "SOLIDWORKS reports {count} open document(s) but returned none — the enumeration \+                 failed, most likely because it was busy. NOTHING was concluded from this read; \+                 retry the call."+            ),+        ))+    }++    /// `swx_close_all_documents`. DESTRUCTIVE, so the server gates it; here we+    /// only report what was open before and what survived.+    fn cmd_close_all_documents(&mut self, args: &Value) -> Result<Value, HostError> {+        let sw = self.app(false, true)?;+        let before: Vec<Value> = sw+            .call("GetDocuments", &[])?+            .as_array()+            .iter()+            .filter_map(|v| v.as_dispatch().map(Disp))+            .map(|d| Self::doc_info(&d))+            .collect();+        let include_unsaved =+            args.get("closeUnsaved").and_then(|v| v.as_bool()).unwrap_or(false);+        let would_prompt: Vec<Value> = before+            .iter()+            .filter(|d| d.get("dirty").and_then(|x| x.as_bool()).unwrap_or(false))+            .cloned()+            .collect();+        let ok = sw+            .call("CloseAllDocuments", &[&Var::boolean(include_unsaved)])?+            .as_bool()+            .unwrap_or(false);+        let remaining: Vec<Value> = sw+            .call("GetDocuments", &[])?+            .as_array()+            .iter()+            .filter_map(|v| v.as_dispatch().map(Disp))+            .map(|d| Self::doc_info(&d))+            .collect();+        Ok(json!({+            "closedAll": ok,+            "closed": before,+            "remaining": remaining,+            "wouldPrompt": would_prompt,+            "closeUnsaved": include_unsaved,+        }))+    }++    /// `ISldWorks::RunMacro2(path, module, proc, options, [out] error) -> bool`+    ///+    /// SCAFFOLDING — written from the documented signature, NOT yet run against+    /// a live SOLIDWORKS. Everything else in this file carries a note saying+    /// whether it was proven live, and this one has not been, so it says so.+    ///+    /// Two details that are easy to get wrong and expensive to debug:+    ///   * the error is an OUT parameter (`swRunMacroError_e`), not the return+    ///     value — the return is a plain bool, and a macro that fails to compile+    ///     comes back `false` with the reason only in the out param;+    ///   * `swRunMacroUnloadAfterRun = 1` is passed deliberately. Without it the+    ///     VBA project stays loaded and an edited macro keeps running its OLD+    ///     code, which looks exactly like the edit not having been saved.+    fn cmd_run_macro(&mut self, args: &Value) -> Result<Value, HostError> {+        let sw = self.app(false, true)?;+        let path = args.get("path").and_then(|v| v.as_str()).unwrap_or("");+        let module = args.get("module").and_then(|v| v.as_str()).unwrap_or("main");+        let procedure = args.get("procedure").and_then(|v| v.as_str()).unwrap_or("main");+        // swRunMacroOption_e: swRunMacroUnloadAfterRun = 1+        let mut run_error: i32 = 0;+        let r = sw.call(+            "RunMacro2",+            &[+                &Var::bstr(path),+                &Var::bstr(module),+                &Var::bstr(procedure),+                &Var::i4(1),+                &Var::byref_i4(&mut run_error as *mut i32),+            ],+        )?;+        let ok = r.as_bool().unwrap_or(run_error == 0);+        Ok(json!({+            "ran": ok,+            "path": path,+            "module": module,+            "procedure": procedure,+            "runError": run_error,+            "runErrorText": Self::macro_error_text(run_error),+            "unloadedAfterRun": true,+            "provenLive": false,+        }))+    }++    /// `swRunMacroError_e`, spelled out — the difference between "no such file"+    /// and "your VBA does not compile" is the whole content of a failed run.+    fn macro_error_text(code: i32) -> &'static str {+        match code {+            0 => "ok",+            1 => "the macro or its module/procedure could not be found",+            2 => "the macro could not be opened (missing file, or not a macro)",+            4 => "the macro failed to compile",+            8 => "the macro raised a runtime error",+            _ => "unrecognised swRunMacroError_e — reported verbatim rather than guessed at",+        }+    }++    fn cmd_document_info(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        let info = Self::doc_info(&doc);+        let configurations: Vec<Value> = doc+            .call("GetConfigurationNames", &[])+            .map(|v| v.as_array().iter().map(|e| e.to_json()).collect())+            .unwrap_or_default();+        let path = info.get("path").and_then(|p| p.as_str()).unwrap_or("").to_string();+        let props = Self::custom_props(&doc, "");+        Ok(json!({+            "name": info.get("title").cloned().unwrap_or(Value::Null),+            "productType": info.get("type").cloned().unwrap_or(Value::Null),+            "path": info.get("path").cloned().unwrap_or(Value::Null),+            // An unsaved scratch document has no path at all — that is the ONE+            // reliable "never been saved" signal SOLIDWORKS gives us.+            "isSaved": !path.is_empty(),+            "dirty": info.get("dirty").cloned().unwrap_or(Value::Null),+            "configuration": info.get("config").cloned().unwrap_or(Value::Null),+            "configurations": configurations,+            "customPropertyCount": props.as_object().map(|m| m.len()).unwrap_or(0),+            "needsRebuild": doc+                .obj("Extension", &[])+                .ok()+                .flatten()+                .and_then(|e| e.int("NeedsRebuild2", &[])),+            "doc": info,+        }))+    }++    /// `swx_design_info` — the design-level summary Fusion answers with.+    fn cmd_design_info(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        let type_id = doc.int("GetType", &[]).unwrap_or(0);+        let mut features = 0usize;+        let mut sketches = 0usize;+        let mut errors = 0usize;+        let mut feature = doc.obj("FirstFeature", &[]).ok().flatten();+        let mut guard = 0;+        while let Some(f) = feature {+            guard += 1;+            if guard > 20_000 {+                break;+            }+            features += 1;+            if f.string("GetTypeName2", &[]).as_deref() == Some("ProfileFeature") {+                sketches += 1;+            }+            if f.call("GetErrorCode", &[]).ok().and_then(|c| c.as_i32()).unwrap_or(0) != 0 {+                errors += 1;+            }+            feature = f.obj("GetNextFeature", &[]).ok().flatten();+        }+        let bodies = if type_id == DOC_PART {+            doc.call("GetBodies2", &[&Var::i4(0), &Var::boolean(true)])+                .map(|v| v.as_array().len())+                .unwrap_or(0)+        } else {+            0+        };+        let components = if type_id == DOC_ASSEMBLY {+            doc.call("GetComponents", &[&Var::boolean(false)])+                .map(|v| v.as_array().len())+                .unwrap_or(0)+        } else {+            0+        };+        let configurations: Vec<Value> = doc+            .call("GetConfigurationNames", &[])+            .map(|v| v.as_array().iter().map(|e| e.to_json()).collect())+            .unwrap_or_default();+        Ok(json!({+            "doc": Self::doc_info(&doc),+            "features": features,+            "sketches": sketches,+            "bodies": bodies,+            "components": components,+            "featureErrors": errors,+            "configurations": configurations,+            "material": Self::material_of(&doc, ""),+            "units": Self::units_of(&doc),+            "needsRebuild": doc+                .obj("Extension", &[])+                .ok()+                .flatten()+                .and_then(|e| e.int("NeedsRebuild2", &[])),+        }))+    }++    /// `GetMaterialPropertyName2(config, byref database) -> name`. The+    /// two-plain-string form v0.2 would have used is rejected by SOLIDWORKS —+    /// the second parameter is a BYREF out-param, which only the explicit+    /// marshalling here can supply.+    fn material_of(doc: &Disp, configuration: &str) -> Value {+        let mut database = BSTR::new();+        match doc.call(+            "GetMaterialPropertyName2",+            &[&Var::bstr(configuration), &Var::byref_bstr(&mut database as *mut BSTR)],+        ) {+            Ok(v) => {+                let name = v.as_string().unwrap_or_default();+                if name.is_empty() {+                    Value::Null+                } else {+                    json!({"name": name, "database": database.to_string()})+                }+            }+            Err(_) => Value::Null,+        }+    }++    /// Document units, read through `IModelDocExtension::GetUserPreferenceInteger`.+    ///+    /// HONEST CAVEAT: the raw enum id is reported alongside the decoded name,+    /// because the `swUserPreferenceIntegerValue_e` ids are not published in a+    /// form this bridge can verify against the installed build. The round trip+    /// (`swx_set_preference` then `swx_get_preferences`) IS proven; the LABEL is+    /// best-effort and says so.+    fn units_of(doc: &Disp) -> Value {+        let read = |id: i32| {+            doc.obj("Extension", &[])+                .ok()+                .flatten()+                .and_then(|e| e.int("GetUserPreferenceInteger", &[&Var::i4(id), &Var::i4(0)]))+        };+        json!({+            "linearRaw": read(53),+            "linear": read(53).map(Self::length_unit_name).unwrap_or(Value::Null),+            "systemRaw": read(48),+            "note": "raw swUserPreferenceIntegerValue_e values; the decoded names are \+                     best-effort. Every geometry number this bridge reports is in SI \+                     (metres/kg) or, where it says so, millimetres — never in document units.",+        })+    }++    fn length_unit_name(v: i32) -> Value {+        // swLengthUnit_e+        Value::from(match v {+            0 => "mm",+            1 => "cm",+            2 => "m",+            3 => "in",+            4 => "ft",+            5 => "ft-in",+            6 => "angstrom",+            7 => "nm",+            8 => "micron",+            9 => "mil",+            10 => "uin",+            _ => "unknown",+        })+    }++    /// `swx_get_parameters` — global variables (the equation manager) plus the+    /// named dimensions Fusion would call user parameters.+    fn cmd_get_parameters(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        let mut out: Vec<Value> = Vec::new();+        if let Ok(Some(eq)) = doc.obj("GetEquationMgr", &[]) {+            let count = eq.int("GetCount", &[]).unwrap_or(0);+            for i in 0..count.max(0) {+                let text = eq.string("Equation", &[&Var::i4(i)]).unwrap_or_default();+                let value = eq.float("Value", &[&Var::i4(i)]);+                // `"name" = expression` is the equation-manager syntax.+                let (name, expression) = match text.split_once('=') {+                    Some((n, e)) => (n.trim().trim_matches('"').to_string(), e.trim().to_string()),+                    None => (format!("equation{i}"), text.clone()),+                };+                out.push(json!({+                    "name": name,+                    "expression": expression,+                    "value": value,+                    "unit": Value::Null,+                    "source": "equation",+                    "index": i,+                }));+            }+        }+        // Named dimensions: walk the feature tree and ask each feature for its+        // display dimensions. `IDimension::SystemValue` is metres, which is what+        // `Parameter("D1@Boss-Extrude1").SystemValue` returned live.+        // BOUNDED: each feature costs at least one COM round trip, so a+        // thousand-feature model would otherwise turn a "read the parameters"+        // verb into a minute of blocked CAD application. 500 features is well+        // past any hand-built part and the cut is reported, not hidden.+        const FEATURE_BUDGET: usize = 500;+        // Each probe is a COM round trip on a single-threaded apartment that+        // nothing else can use meanwhile, so the COST is what needs bounding,+        // not just the feature count. 400 probes is a fraction of a second on a+        // warm host and covers any hand-built part.+        const PROBE_BUDGET: usize = 400;+        let mut probes = 0usize;+        let mut feature = doc.obj("FirstFeature", &[]).ok().flatten();+        let mut guard = 0usize;+        let mut truncated = false;+        while let Some(f) = feature {+            guard += 1;+            if guard > FEATURE_BUDGET {+                truncated = true;+                break;+            }+            let fname = f.string("Name", &[]).unwrap_or_default();+            if !fname.is_empty() {+                for n in 1..=8 {+                    if probes >= PROBE_BUDGET {+                        truncated = true;+                        break;+                    }+                    probes += 1;+                    let key = format!("D{n}@{fname}");+                    let dim = doc.obj("Parameter", &[&Var::bstr(&key)]).ok().flatten();+                    let Some(dim) = dim else { break };+                    let value = dim.float("SystemValue", &[]);+                    out.push(json!({+                        "name": key,+                        "expression": Value::Null,+                        "value": value,+                        "valueMm": value.map(|v| (v * 1000.0 * 1000.0).round() / 1000.0),+                        "unit": "m",+                        "source": "dimension",+                    }));+                }+            }+            if truncated {+                break;+            }+            feature = f.obj("GetNextFeature", &[]).ok().flatten();+        }+        Ok(json!({+            "doc": Self::doc_info(&doc),+            "parameters": out,+            "count": out.len(),+            "featuresWalked": guard,+            "dimensionProbes": probes,+            "truncated": truncated,+        }))+    }++    /// `swx_set_parameter` — drive one named dimension or global variable.+    fn cmd_set_parameter(&mut self, args: &Value) -> Result<Value, HostError> {+        let name = args+            .get("name")+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .ok_or_else(|| HostError::msg("name is required, e.g. \"D1@Boss-Extrude1\""))?;+        // `name` here is the DIMENSION, not the document. The document comes+        // from the server's authorized `docName`/`path`.+        let doc = self.resolve(&json!({+            "docName": args.get("docName").cloned(),+            "path": args.get("path").cloned(),+        }))?;+        // Millimetres if the caller says so (the unit an engineer speaks), metres+        // otherwise — SystemValue is metres and the ambiguity has to die here.+        let (value, unit) = match (args.get("valueMm").and_then(|v| v.as_f64()), args.get("value").and_then(|v| v.as_f64())) {+            (Some(mm), _) => (mm * 0.001, "mm"),+            (None, Some(m)) => (m, "m"),+            _ => return Err(HostError::msg("value (metres) or valueMm (millimetres) is required")),+        };+        if !value.is_finite() {+            return Err(HostError::msg("value must be a finite number"));+        }+        let dim = doc+            .obj("Parameter", &[&Var::bstr(name)])?+            .ok_or_else(|| {+                HostError::msg(format!(+                    "no dimension named '{name}' — swx_get_parameters lists what this document \+                     has (dimension names look like D1@Boss-Extrude1)"+                ))+            })?;+        let before = dim.float("SystemValue", &[]);+        dim.put("SystemValue", &Var::r8(value))?;+        let rebuilt = doc.call("EditRebuild3", &[]).ok().and_then(|v| v.as_bool());+        let after = dim.float("SystemValue", &[]);+        Ok(json!({+            "doc": Self::doc_info(&doc),+            "name": name,+            "requested": value,+            "unitGiven": unit,+            "before": before,+            "value": after,+            "valueMm": after.map(|v| (v * 1000.0 * 1000.0).round() / 1000.0),+            "rebuilt": rebuilt,+        }))+    }++    /// `swx_inspect_bodies` — geometry read-back in MILLIMETRES, the Fusion+    /// shape. `GetBodies2(0, true)` (solid bodies, visible only) is proven live.+    fn cmd_inspect_bodies(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        if doc.int("GetType", &[]).unwrap_or(0) != DOC_PART {+            return Err(HostError::msg(+                "inspect_bodies needs a part (.sldprt); for an assembly use swx_bom or \+                 swx_mass_properties",+            ));+        }+        let bodies = doc.call("GetBodies2", &[&Var::i4(0), &Var::boolean(true)])?;+        let filter = args.get("nameContains").and_then(|v| v.as_str()).unwrap_or("");+        let mut out = Vec::new();+        for b in bodies.as_array() {+            let Some(body) = b.as_dispatch().map(Disp) else { continue };+            let name = body.string("Name", &[]).unwrap_or_default();+            if !filter.is_empty() && !name.to_lowercase().contains(&filter.to_lowercase()) {+                continue;+            }+            // GetBodyBox -> [xMin,yMin,zMin,xMax,yMax,zMax] in metres.+            let bb: Vec<f64> =+                body.call("GetBodyBox", &[]).map(|v| v.as_array().iter().filter_map(|e| e.as_f64()).collect()).unwrap_or_default();+            let mm = |v: f64| (v * 1000.0 * 1000.0).round() / 1000.0;+            let (bbox, size) = if bb.len() >= 6 {+                (+                    json!({"minMm": [mm(bb[0]), mm(bb[1]), mm(bb[2])], "maxMm": [mm(bb[3]), mm(bb[4]), mm(bb[5])]}),+                    json!({"x": mm(bb[3] - bb[0]), "y": mm(bb[4] - bb[1]), "z": mm(bb[5] - bb[2])}),+                )+            } else {+                (Value::Null, Value::Null)+            };+            // IBody2::GetMassProperties(accuracy) -> [cx,cy,cz, volume, area, mass, ...]+            let mp: Vec<f64> = body+                .call("GetMassProperties", &[&Var::r8(0.0)])+                .map(|v| v.as_array().iter().filter_map(|e| e.as_f64()).collect())+                .unwrap_or_default();+            let get = |i: usize| mp.get(i).copied();+            out.push(json!({+                "name": name,+                "bbox": bbox,+                "sizeMm": size,+                "volumeMm3": get(3).map(|v| (v * 1.0e9 * 1000.0).round() / 1000.0),+                "areaMm2": get(4).map(|v| (v * 1.0e6 * 1000.0).round() / 1000.0),+                "massKg": get(5),+                "centerOfMassMm": (mp.len() >= 3).then(|| json!([mm(mp[0]), mm(mp[1]), mm(mp[2])])),+                "faceCount": body.int("GetFaceCount", &[]),+                "visible": body.flag("Visible", &[]),+                "isSolid": true,+            }));+        }+        Ok(json!({+            "documentName": doc.string("GetTitle", &[]),+            "doc": Self::doc_info(&doc),+            "units": "mm",+            "bodyCount": out.len(),+            "bodies": out,+        }))+    }++    /// `swx_import` — bring a neutral CAD file in as a new document.+    ///+    /// `LoadFile4(path, "r", importData, byref errors)` is the modern route; the+    /// `importData` argument is the optional object our `null` VARIANT covers.+    /// NOT proven live (SOLIDWORKS Connected was down when this was written), so+    /// it falls back to `LoadFile2(path, "")`, which at least reports honestly.+    fn cmd_import(&mut self, args: &Value) -> Result<Value, HostError> {+        let path = args+            .get("filePath")+            .or_else(|| args.get("path"))+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .ok_or_else(|| HostError::msg("filePath is required"))?;+        if !std::path::Path::new(path).exists() {+            return Err(HostError::msg(format!("file not found: {path}")));+        }+        let sw = self.app(false, true)?;+        let mut errors = 0i32;+        // Count first. LoadFile4 can IMPORT SUCCESSFULLY and still hand back+        // something that is not an IDispatch we can use — and the first version+        // of this fell through to LoadFile2 on exactly that, importing the file+        // a SECOND time and leaving two documents open, one of them untracked.+        // So the fallback is decided by whether a document actually appeared,+        // not by the shape of the return value.+        // FAIL CLOSED. If we cannot count the open documents we cannot tell+        // whether LoadFile4 already imported the file, and guessing wrong runs+        // the import a second time — two documents, one of them untracked.+        let before = match sw.call("GetDocuments", &[]) {+            Ok(d) => d.as_array().len(),+            Err(e) => {+                return Err(HostError::detailed(+                    "cannot import: SOLIDWORKS would not report its open documents, so there is \+                     no way to tell afterwards whether the import already happened"+                        .to_string(),+                    e.message,+                ))+            }+        };+        let load4 = sw.call(+            "LoadFile4",+            &[+                &Var::bstr(path),+                &Var::bstr("r"),+                &Var::empty(),+                &Var::byref_i4(&mut errors as *mut i32),+            ],+        );+        let load4_err = load4.as_ref().err().map(|e| e.message.clone());+        let imported = load4.ok().and_then(|v| v.as_dispatch()).map(Disp);+        let after = match sw.call("GetDocuments", &[]) {+            Ok(d) => d.as_array().len(),+            Err(e) => {+                return Err(HostError::detailed(+                    "the import may or may not have completed: SOLIDWORKS stopped reporting its \+                     open documents. Check swx_docs before retrying — retrying blind could import \+                     the file twice."+                        .to_string(),+                    e.message,+                ))+            }+        };+        if let Some(doc) = imported {+            return Ok(json!({+                "imported": Self::doc_info(&doc),+                "via": "LoadFile4",+                "errors": errors,+                "documentsOpened": after.saturating_sub(before),+            }));+        }+        if after > before {+            // It DID import; we just could not take the handle. Use the active+            // document rather than importing it again.+            let doc = sw+                .obj("ActiveDoc", &[])?+                .ok_or_else(|| HostError::msg("import added a document but none became active"))?;+            return Ok(json!({+                "imported": Self::doc_info(&doc),+                "via": "LoadFile4 (handle recovered from ActiveDoc)",+                "errors": errors,+                "documentsOpened": after - before,+            }));+        }+        let ok = sw.call("LoadFile2", &[&Var::bstr(path), &Var::bstr("")])?.as_bool().unwrap_or(false);+        if !ok {+            return Err(HostError::detailed(+                format!(+                    "SOLIDWORKS could not import {path} (LoadFile4 opened nothing, errors={errors}; \+                     LoadFile2 refused). Importable formats depend on the installed translators."+                ),+                load4_err.unwrap_or_else(|| "LoadFile4 returned no document".into()),+            ));+        }+        let doc = sw+            .obj("ActiveDoc", &[])?+            .ok_or_else(|| HostError::msg("import reported success but no document became active"))?;+        Ok(json!({+            "imported": Self::doc_info(&doc),+            "via": "LoadFile2",+            "errors": errors,+            "documentsOpened": 1,+        }))+    }++    /// `swx_save_as` — a DELIBERATE rename/move of the open document (plain+    /// Silent, no Copy), as opposed to `swx_export`'s copy.+    fn cmd_save_as(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        let out = args+            .get("outputPath")+            .or_else(|| args.get("out"))+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .ok_or_else(|| HostError::msg("outputPath is required"))?;+        let copy = args.get("copy").and_then(|v| v.as_bool()).unwrap_or(false);+        // A rename touches the DOCUMENT; a copy only writes a file.+        let was_ours = self.host_owns(&doc);+        let code = Self::save_as3(&doc, out, copy)?;+        if code != 0 {+            return Err(HostError::msg(format!(+                "SOLIDWORKS refused to save {out}: {}",+                Self::save_error_text(code)+            )));+        }+        // OWNERSHIP FOLLOWS THE DOCUMENT, not the string that used to name it.+        // A non-copy save_as retitles and re-paths the document in place; if the+        // host's record is not moved with it, the bridge disowns the scratch+        // document it just saved and can no longer close or clean it up.+        if !copy && was_ours {+            let old_title = doc.string("GetTitle", &[]).unwrap_or_default();+            self.created.retain(|(t, _)| *t != old_title);+            self.remember_created(&doc);+        }+        Ok(json!({+            "savedAs": out,+            "copy": copy,+            "bytes": std::fs::metadata(out).map(|m| m.len()).ok(),+            "doc": Self::doc_info(&doc),+        }))+    }++    /// `swx_show_*` — activate the document and fit it in the view, in the+    /// BACKGROUND. `ViewZoomtofit2` is proven live.+    fn cmd_show(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args)?;+        let title = doc.string("GetTitle", &[]).unwrap_or_default();+        let mut errors = 0i32;+        let activated = if args.get("activate").and_then(|v| v.as_bool()).unwrap_or(true) {+            let sw = self.app(false, true)?;+            sw.call(+                "ActivateDoc3",+                &[+                    &Var::bstr(&title),+                    &Var::boolean(false),+                    &Var::i4(0),+                    &Var::byref_i4(&mut errors as *mut i32),+                ],+            )+            .is_ok()+        } else {+            false+        };+        let zoomed = doc.call("ViewZoomtofit2", &[]).is_ok();+        Ok(json!({+            "document": title,+            "doc": Self::doc_info(&doc),+            "activated": activated,+            "zoomedToFit": zoomed,+            "activateErrors": errors,+        }))+    }++    /// `swx_get_app_state` — the Fusion-shaped snapshot, from COM only (the+    /// server adds the window/dialog half through ab).+    fn cmd_app_state(&mut self) -> Result<Value, HostError> {+        let sw = match self.app(false, true) {+            Ok(sw) => sw,+            Err(_) => {+                return Ok(json!({+                    "running": false,+                    "activeDocument": Value::Null,+                    "documents": [],+                    "busy": Value::Null,+                    "mainHwnd": Value::Null,+                }))+            }+        };+        let docs: Vec<Value> = sw+            .call("GetDocuments", &[])?+            .as_array()+            .iter()+            .filter_map(|v| v.as_dispatch().map(Disp))+            .map(|d| Self::doc_info(&d))+            .collect();+        let active = sw.obj("ActiveDoc", &[])?.map(|d| Self::doc_info(&d));+        let workspace = active+            .as_ref()+            .and_then(|a| a.get("type").and_then(|t| t.as_str()))+            .unwrap_or("none")+            .to_string();+        let unsaved = docs+            .iter()+            .filter(|d| d.get("dirty").and_then(|x| x.as_bool()).unwrap_or(false))+            .count();+        Ok(json!({+            "running": true,+            "version": sw.string("RevisionNumber", &[]),+            "activeDocument": active.clone().map(|a| a.get("title").cloned().unwrap_or(Value::Null)).unwrap_or(Value::Null),+            "activeDoc": active,+            "documents": docs,+            "documentCount": sw.int("GetDocumentCount", &[]),+            "unsavedDocuments": unsaved,+            "workspace": workspace,+            "busy": sw.flag("CommandInProgress", &[]),+            "visible": sw.flag("Visible", &[]),+            "processId": sw.int("GetProcessID", &[]),+            "mainHwnd": Self::main_hwnd(&sw),+        }))+    }++    /// The application window handle, straight from COM — the only way to+    /// attribute a desktop window to SOLIDWORKS with certainty. Proven live+    /// (`$sw.Frame().GetHWnd()` -> 1836650).+    fn main_hwnd(sw: &Disp) -> Value {+        sw.obj("Frame", &[])+            .ok()+            .flatten()+            .and_then(|f| f.int("GetHWnd", &[]))+            .map(Value::from)+            .unwrap_or(Value::Null)+    }++    /// `swx_check_recovery` — SOLIDWORKS exposes no "is the recovery pane up"+    /// API, so this reports the two facts it CAN prove and leaves the dialog+    /// half to the server's window census.+    fn cmd_check_recovery(&mut self) -> Result<Value, HostError> {+        let sw = self.app(false, true)?;+        let docs = sw.call("GetDocuments", &[])?.as_array().len();+        Ok(json!({+            "openDocuments": docs,+            "comApiHasRecoveryCheck": false,+            "note": "SOLIDWORKS exposes no COM member for the Document Recovery pane; the \+                     server pairs this with the window census, which is where a recovery \+                     dialog actually shows up.",+        }))+    }++    /// `swx_get_preferences` / `swx_set_preference`. Deliberately a SMALL,+    /// named table: a preference this bridge cannot round-trip is a preference+    /// it has no business claiming to support.+    fn cmd_get_preferences(&mut self, args: &Value) -> Result<Value, HostError> {+        let doc = self.resolve(args).ok();+        let sw = self.app(false, true)?;+        let mut current = Map::new();+        for (name, id) in PREFERENCES {+            let value = doc+                .as_ref()+                .and_then(|d| d.obj("Extension", &[]).ok().flatten())+                .and_then(|e| e.int("GetUserPreferenceInteger", &[&Var::i4(*id), &Var::i4(0)]));+            current.insert(+                (*name).to_string(),+                json!({"id": id, "value": value, "scope": "document"}),+            );+        }+        current.insert(+            "lengthUnit".into(),+            json!(doc+                .as_ref()+                .and_then(|d| d.obj("Extension", &[]).ok().flatten())+                .and_then(|e| e.int("GetUserPreferenceInteger", &[&Var::i4(53), &Var::i4(0)]))+                .map(Self::length_unit_name)+                .unwrap_or(Value::Null)),+        );+        Ok(json!({+            "current": Value::Object(current),+            "documentScoped": doc.is_some(),+            "app": {+                "visible": sw.flag("Visible", &[]),+                "licenseType": sw.int("GetCurrentLicenseType", &[]),+                "version": sw.string("RevisionNumber", &[]),+            },+        }))+    }++    fn cmd_set_preference(&mut self, args: &Value) -> Result<Value, HostError> {+        let name = args+            .get("name")+            .and_then(|v| v.as_str())+            .ok_or_else(|| HostError::msg("name is required"))?;+        let id = PREFERENCES+            .iter()+            .find(|(n, _)| *n == name)+            .map(|(_, id)| *id)+            .ok_or_else(|| {+                HostError::msg(format!(+                    "unknown preference '{name}' — this bridge only exposes preferences it can \+                     round-trip: {}",+                    PREFERENCES.iter().map(|(n, _)| *n).collect::<Vec<_>>().join(", ")+                ))+            })?;+        let value = args+            .get("value")+            .and_then(|v| v.as_i64())+            .ok_or_else(|| HostError::msg("value (an integer) is required"))?+            as i32;+        // `name` here is the PREFERENCE, not the document.+        let doc = self.resolve(&json!({+            "docName": args.get("docName").cloned(),+            "path": args.get("path").cloned(),+        }))?;+        let ext = doc.obj("Extension", &[])?.ok_or_else(|| HostError::msg("no ModelDocExtension"))?;+        let before = ext.int("GetUserPreferenceInteger", &[&Var::i4(id), &Var::i4(0)]);+        ext.call(+            "SetUserPreferenceInteger",+            &[&Var::i4(id), &Var::i4(0), &Var::i4(value)],+        )?;+        let after = ext.int("GetUserPreferenceInteger", &[&Var::i4(id), &Var::i4(0)]);+        // Verify by READING BACK — a preference setter that reports success+        // without checking is how a bridge starts lying.+        Ok(json!({+            "applied": {name: after},+            "name": name,+            "id": id,+            "requested": value,+            "before": before,+            "value": after,+            "verified": after == Some(value),+        }))+    }++    /// `swx_cloud_status` — what this install can tell us about 3DEXPERIENCE.+    ///+    /// LIVE FINDING: the SOLIDWORKS COM API exposes NO PLM/3DSpace member on+    /// this build (`IsPLMConnected`, `GetPLMConnection`, `GetSearchFolders` and+    /// `EnumDocuments2` are all absent or rejected). So there is no COM route to+    /// the cloud file store at all, and this verb says so precisely rather than+    /// pretending.+    fn cmd_cloud_status(&mut self) -> Result<Value, HostError> {+        let sw = self.app(false, true)?;+        let mut probed = Map::new();+        for member in ["IsPLMConnected", "GetPLMConnection", "GetSearchFolders", "EnumDocuments2"] {+            probed.insert(+                member.to_string(),+                Value::from(sw.call(member, &[]).is_ok()),+            );+        }+        Ok(json!({+            "connected": Value::Null,+            "comApiExposesCloud": false,+            "probedMembers": Value::Object(probed),+            "licenseType": sw.int("GetCurrentLicenseType", &[]),+            "version": sw.string("RevisionNumber", &[]),+        }))+    }++    /// `swx_run_script` — the modeling DSL, executed with the exact call+    /// sequence proven live on this install.+    /// `swx_add_component` — put component instances into an assembly.+    ///+    /// THE FINDING THIS VERB EXISTS FOR. `IAssemblyDoc::AddComponent5` is the+    /// documented way to insert a component, and on this bridge's first live+    /// target (SOLIDWORKS Connected R2026x, Design Professional for Makers) it+    /// returns `Nothing`. An earlier probe read that as "this edition cannot+    /// insert components at all" and the whole assembly surface — `swx_bom`,+    /// `swx_interference`, per-component mass properties — was written off as+    /// mock-only.+    ///+    /// The return value is the lie, not the insertion. So this command does not+    /// trust it: it COUNTS the assembly's components before and after the call+    /// and treats a rise as success. On top of that it walks a ladder of+    /// spellings (`AddComponent5` with each config option, then `AddComponent4`,+    /// `AddComponent3`, `AddComponent`) and, if every one fails, loads the+    /// component document read-only with `OpenDoc6` — a documented precondition+    /// — and walks the ladder again. Whatever rung works is remembered in+    /// `insert_method`, because an assembly of 150 fasteners must not pay the+    /// discovery cost 150 times.+    fn cmd_add_component(&mut self, args: &Value) -> Result<Value, HostError> {+        let asm = self.resolve(args)?;+        if asm.int("GetType", &[]).unwrap_or(0) != DOC_ASSEMBLY {+            return Err(HostError::coded(+                "not_an_assembly",+                "add_component needs an assembly (.sldasm) as the target document — \+                 swx_new_document {\"type\":\"assembly\"} makes one",+            ));+        }+        let reqs = Self::component_requests(args)?;+        let fix = args.get("fix").and_then(|v| v.as_bool()).unwrap_or(false);+        let sw = self.app(false, true)?;+        // AddComponent5 inserts into the ACTIVE assembly, so the target has to+        // be the one in front. This switches which DOCUMENT is current inside+        // SOLIDWORKS; it does not raise the application over anything.+        let title = asm.string("GetTitle", &[]).unwrap_or_default();+        let mut activate_errors = 0i32;+        let _ = sw.call(+            "ActivateDoc3",+            &[+                &Var::bstr(&title),+                &Var::boolean(false),+                &Var::i4(0),+                &Var::byref_i4(&mut activate_errors as *mut i32),+            ],+        );++        // WHICH components did this call insert? Matching the request against+        // GetComponents by FILE PATH cannot answer that once the assembly already+        // holds an instance of the same file: `same_path` matches ANY instance, so+        // the transform for a new component can be written onto an OLDER one -+        // overwriting a good placement and leaving the new component wherever+        // AddComponent5 dropped it. Measured on the crate's side panel: R2+        // instances 1-2 landed exactly, 3-5 carried the "centred on the requested+        // point" signature. Names are identities (SOLIDWORKS never reissues one in+        // a document), so snapshot them and diff.+        let before: std::collections::HashSet<String> = asm+            .call("GetComponents", &[&Var::boolean(true)])+            .map(|v| v.as_array())+            .unwrap_or_default()+            .iter()+            .filter_map(|c| c.as_dispatch().map(Disp))+            .filter_map(|c| c.string("Name2", &[]))+            .collect();++        let mut inserted: Vec<Value> = Vec::new();+        let mut failed: Vec<Value> = Vec::new();+        let mut fixed = 0usize;+        for r in &reqs {+            if !std::path::Path::new(&r.file).exists() {+                failed.push(json!({+                    "filePath": r.file,+                    "error": "file not found on the DESKTOP filesystem",+                }));+                continue;+            }+            let mut used: Option<&'static str> = None;+            let mut attempts: Vec<Value> = Vec::new();+            let mut preloaded: Option<Value> = None;+            'passes: for pass in 0..2 {+                if pass == 1 {+                    // Documented precondition, paid for only when the direct+                    // route failed: the component document must be in memory.+                    // READ-ONLY — inserting a component reads its geometry and+                    // never writes to the part file, and a write lock on it+                    // would buy nothing.+                    let (e, w) = Self::preload_component(&sw, &r.file, &r.config);+                    preloaded = Some(json!({"openErrors": e, "openWarnings": w}));+                }+                let before = Self::component_count(&asm);+                for method in Self::insert_ladder(self.insert_method.as_deref()) {+                    let called = Self::invoke_insert(&asm, method, r);+                    if Self::component_count(&asm) > before {+                        used = Some(method);+                        break 'passes;+                    }+                    attempts.push(json!({+                        "method": method,+                        "pass": pass,+                        "comError": called.err().map(|e| e.message),+                    }));+                }+            }+            match used {+                Some(method) => {+                    self.insert_method = Some(method.to_string());+                    let comp = Self::last_component(&asm);+                    if fix {+                        if let Some(c) = &comp {+                            if Self::fix_component(&asm, c) {+                                fixed += 1;+                            }+                        }+                    }+                    inserted.push(json!({+                        "filePath": r.file,+                        "name": comp.as_ref().and_then(|c| c.string("Name2", &[])),+                        "method": method,+                        "preloaded": preloaded.is_some(),+                        "positionMm": [+                            r.x / crate::script::MM,+                            r.y / crate::script::MM,+                            r.z / crate::script::MM,+                        ],+                        "rotationDeg": [+                            r.rx.to_degrees(),+                            r.ry.to_degrees(),+                            r.rz.to_degrees(),+                        ],+                    }));+                }+                None => failed.push(json!({+                    "filePath": r.file,+                    "error": "the assembly's component count did not rise after any known \+                              IAssemblyDoc insert call",+                    "preload": preloaded,+                    "attempts": attempts,+                })),+            }+        }+        // ORIENTATION, in ONE sweep. AddComponent5 places a component at a point+        // with no rotation, so anything that has to lie on its side needs its+        // transform written afterwards — and the insert call hands back no+        // handle to write it to. Matching components to requests by (file,+        // translation) costs one pass over the assembly instead of a search per+        // insert, which is the difference between O(n) and O(n²) COM calls on a+        // crate with four hundred fasteners in it.+        let orient = Self::apply_transforms(&sw, &asm, &reqs, &before);+        Ok(json!({+            "assembly": Self::doc_info(&asm),+            "requested": reqs.len(),+            "insertedCount": inserted.len(),+            "inserted": inserted,+            "failedCount": failed.len(),+            "failed": failed,+            "componentCount": Self::component_count(&asm),+            "method": self.insert_method,+            "fixedCount": fixed,+            "placedCount": orient.0,+            "rotationsRequested": reqs.iter().filter(|r| r.rotated()).count(),+            "placementNotes": orient.1,+            "activateErrors": activate_errors,+        }))+    }++    /// Every insert spelling this bridge knows, best first. `AddComponent5/<n>`+    /// is `AddComponent5` with `swAddComponentConfigOptions_e` = n.+    const INSERT_METHODS: &'static [&'static str] = &[+        "AddComponent5/1",+        "AddComponent5/3",+        "AddComponent5/2",+        "AddComponent5/0",+        "AddComponent4",+        "AddComponent3",+        "AddComponent",+    ];++    /// The ladder with the remembered winner promoted to the front, so a proven+    /// install pays one COM call per component and an unproven one still finds+    /// its way.+    fn insert_ladder(cached: Option<&str>) -> Vec<&'static str> {+        let mut v: Vec<&'static str> = Self::INSERT_METHODS.to_vec();+        if let Some(c) = cached {+            if let Some(i) = v.iter().position(|m| *m == c) {+                let m = v.remove(i);+                v.insert(0, m);+            }+        }+        v+    }++    fn invoke_insert(asm: &Disp, method: &str, r: &crate::script::Component) -> Result<(), HostError> {+        let (x, y, z) = (Var::r8(r.x), Var::r8(r.y), Var::r8(r.z));+        match method {+            "AddComponent4" => {+                asm.call(+                    "AddComponent4",+                    &[&Var::bstr(&r.file), &Var::bstr(&r.config), &x, &y, &z],+                )?;+            }+            "AddComponent3" => {+                asm.call("AddComponent3", &[&Var::bstr(&r.file), &x, &y, &z])?;+            }+            "AddComponent" => {+                asm.call("AddComponent", &[&Var::bstr(&r.file), &x, &y, &z])?;+            }+            other => {+                // AddComponent5(CompName, ConfigOption, NewConfigName,+                //               UseConfigForPartReferences, ConfigName, X, Y, Z)+                let opt: i32 = other.rsplit('/').next().and_then(|s| s.parse().ok()).unwrap_or(1);+                asm.call(+                    "AddComponent5",+                    &[+                        &Var::bstr(&r.file),+                        &Var::i4(opt),+                        &Var::bstr(""),+                        &Var::boolean(false),+                        &Var::bstr(&r.config),+                        &x,+                        &y,+                        &z,+                    ],+                )?;+            }+        }+        Ok(())+    }++    /// Load a component document silently and READ-ONLY. Returns OpenDoc6's+    /// byref (errors, warnings) so a failure to insert can say whether the file+    /// even loaded.+    fn preload_component(sw: &Disp, file: &str, config: &str) -> (i32, i32) {+        let mut errors = 0i32;+        let mut warnings = 0i32;+        let type_id = doc_type_id(file).unwrap_or(DOC_PART);+        // swOpenDocOptions_Silent (1) | swOpenDocOptions_ReadOnly (2)+        let _ = sw.call(+            "OpenDoc6",+            &[+                &Var::bstr(file),+                &Var::i4(type_id),+                &Var::i4(1 | 2),+                &Var::bstr(config),+                &Var::byref_i4(&mut errors as *mut i32),+                &Var::byref_i4(&mut warnings as *mut i32),+            ],+        );+        (errors, warnings)+    }++    /// THE SUCCESS TEST. Not the return value of the insert call — see+    /// `cmd_add_component`.+    fn component_count(asm: &Disp) -> usize {+        asm.call("GetComponents", &[&Var::boolean(true)]).map(|v| v.as_array().len()).unwrap_or(0)+    }++    /// The most recently added top-level component, best effort — used only for+    /// the reported name and the optional fix, never for the success test.+    fn last_component(asm: &Disp) -> Option<Disp> {+        let mut comps = asm.call("GetComponents", &[&Var::boolean(true)]).ok()?.as_array();+        comps.pop()?.as_dispatch().map(Disp)+    }++    /// Fix a component in place so nothing can drag it off its coordinates.+    /// Best effort: an assembly positioned by coordinates is still correct+    /// without it.+    fn fix_component(asm: &Disp, comp: &Disp) -> bool {+        let selected = comp+            .call("Select4", &[&Var::boolean(false), &Var::empty(), &Var::boolean(false)])+            .ok()+            .and_then(|v| v.as_bool())+            .unwrap_or(false);+        if !selected {+            return false;+        }+        let ok = asm.call("FixComponent", &[]).is_ok();+        let _ = asm.call("ClearSelection2", &[&Var::boolean(true)]);+        ok+    }++    /// Write the EXACT transform — position and rotation — onto every component+    /// this call inserted.+    ///+    /// Two live findings force this. `AddComponent5`'s X/Y/Z is not the+    /// component's transform origin on this install: a part whose own centroid+    /// sits at (50, 6, -25) mm inserted at (0, 0, 0) lands with the assembly's+    /// centre of mass at the origin, i.e. SOLIDWORKS centred it on the point+    /// rather than putting its origin there. And the insert call returns nothing+    /// to hold on to, so there is no handle to correct it through. Writing the+    /// transform afterwards makes the position mean exactly one thing —+    /// "the component's origin goes here" — and rotation comes free with it.+    ///+    /// The components this batch inserted are found by MATCHING THE SEQUENCE of+    /// file paths: they occupy one contiguous run of the assembly's component+    /// list, forwards or backwards, and the run that matches the request order+    /// is the batch. That is O(n) COM calls for the whole batch instead of a+    /// search per component, and it PROVES the mapping rather than assuming an+    /// ordering — if no run matches, nothing is written and the response says+    /// so.+    fn apply_transforms(+        sw: &Disp,+        asm: &Disp,+        reqs: &[crate::script::Component],+        before: &std::collections::HashSet<String>,+    ) -> (usize, Vec<Value>) {+        if reqs.is_empty() {+            return (0, Vec::new());+        }+        let mut notes: Vec<Value> = Vec::new();+        let math = match sw.obj("GetMathUtility", &[]) {+            Ok(Some(m)) => m,+            _ => {+                notes.push(json!({+                    "error": "IMathUtility is unavailable, so no component transform could be \+                              written — components are wherever AddComponent5 put them",+                }));+                return (0, notes);+            }+        };+        let comps: Vec<Disp> = asm+            .call("GetComponents", &[&Var::boolean(true)])+            .map(|v| v.as_array())+            .unwrap_or_default()+            .iter()+            .filter_map(|c| c.as_dispatch().map(Disp))+            .collect();+        let paths: Vec<String> =+            comps.iter().map(|c| c.string("GetPathName", &[]).unwrap_or_default()).collect();+        let names: Vec<String> =+            comps.iter().map(|c| c.string("Name2", &[]).unwrap_or_default()).collect();++        // The components whose NAME is new since the snapshot are exactly the ones+        // this call inserted — no ordering assumption at all. GetComponents does+        // not return them in insertion order, nor grouped by file, which is why+        // the contiguous-run match below could not find five R2 instances among+        // seven components.+        let new_idx: Vec<usize> = (0..comps.len())+            .filter(|&i| !names[i].is_empty() && !before.contains(&names[i]))+            .collect();+        let mut targets: Vec<usize> = Vec::new();+        if new_idx.len() == reqs.len() {+            // Instances of one file are interchangeable, so a greedy per-path+            // assignment over the new components is exact.+            let mut used = vec![false; new_idx.len()];+            for r in reqs {+                let mut hit: Option<usize> = None;+                for (k, &i) in new_idx.iter().enumerate() {+                    if !used[k] && crate::verbs::same_path(&r.file, &paths[i]) {+                        used[k] = true;+                        hit = Some(i);+                        break;+                    }+                }+                match hit {+                    Some(i) => targets.push(i),+                    None => {+                        targets.clear();+                        break;+                    }+                }+            }+        }+        if targets.len() != reqs.len() {+            // Fallback: the pre-0.3.2 contiguous-run match, for the case where+            // names could not be read at all.+            targets.clear();+            let Some((offset, forward)) = crate::script::locate_run(&paths, reqs) else {+                notes.push(json!({+                    "error": "the components just inserted could not be located in the assembly \+                              by name or by matching the sequence of file paths, so no transform \+                              was written — every component is where AddComponent5 put it, which \+                              is NOT necessarily the position that was asked for",+                    "assemblyComponents": paths.len(),+                    "newByName": new_idx.len(),+                    "requested": reqs.len(),+                }));+                return (0, notes);+            };+            for i in 0..reqs.len() {+                targets.push(if forward { offset + i } else { offset + reqs.len() - 1 - i });+            }+        }+        let mut placed = 0usize;+        for (i, r) in reqs.iter().enumerate() {+            let comp = &comps[targets[i]];+            let data = r.transform();+            match math.call("CreateTransform", &[&Var::r8_array(&data)]).map(|v| v.as_dispatch()) {+                Ok(Some(t)) => match comp.put("Transform2", &Var::dispatch(&t)) {+                    Ok(()) => placed += 1,+                    Err(e) => notes.push(json!({"filePath": r.file, "error": e.message})),+                },+                Ok(None) => notes+                    .push(json!({"filePath": r.file, "error": "CreateTransform returned nothing"})),+                Err(e) => notes.push(json!({"filePath": r.file, "error": e.message})),+            }+        }+        (placed, notes)+    }++    /// The SAME parser the server ran, re-run here. The host re-validating what+    /// the server already validated is the pattern every mutating command+    /// follows: a server-side decision is a claim.+    fn component_requests(args: &Value) -> Result<Vec<crate::script::Component>, HostError> {+        crate::script::parse_components(args).map_err(HostError::msg)+    }++    fn cmd_run_script(&mut self, args: &Value) -> Result<Value, HostError> {+        use crate::script::Op;+        let script = args.get("script").cloned().unwrap_or(Value::Null);+        let ops = crate::script::parse(&script).map_err(HostError::msg)?;+        let has_doc = self.resolve(&json!({})).is_ok();+        crate::script::validate(&ops, has_doc).map_err(HostError::msg)?;++        // PIN the target. Without this every step re-resolved "the active+        // document", so a dialog, a rebuild that stole focus, or the user simply+        // clicking another SOLIDWORKS window between steps could move a running+        // script onto a different model halfway through. The server sends the+        // title it validated ownership of; a `new_part` step replaces it with+        // the document it just made.+        let mut pinned: Option<String> =+            args.get("targetDocument").and_then(|v| v.as_str()).filter(|s| !s.is_empty()).map(String::from);+        if let Some(want) = &pinned {+            // Prove the pin resolves BEFORE running anything.+            self.resolve(&json!({"name": want})).map_err(|e| {+                HostError::detailed(+                    format!("cannot target document '{want}': {}", e.message),+                    "swx_docs lists the titles that are open. Nothing was run.".to_string(),+                )+            })?;+        }++        let mut results = Vec::new();+        let mut created: Option<Value> = None;+        for (i, op) in ops.iter().enumerate() {+            let step = i + 1;+            let detail = self.run_op(op, &pinned).map_err(|e| {+                HostError::detailed(+                    format!("step {step} ({}) failed: {}", op.name(), e.message),+                    e.detail.unwrap_or_else(|| {+                        format!(+                            "{} of {} steps ran. Anything already built is still in the open \+                             document; close it with swx_close_doc {{save:false}} if you want a \+                             clean slate.",+                            step - 1,+                            ops.len()+                        )+                    }),+                )+            })?;+            if matches!(op, Op::NewPart | Op::NewAssembly) {+                pinned = detail+                    .get("created")+                    .and_then(|c| c.get("title"))+                    .and_then(|t| t.as_str())+                    .map(String::from);+                created = Some(detail.clone());+            }+            results.push(json!({"step": step, "op": op.name(), "result": detail}));+        }+        let doc = self.resolve(&Self::doc_arg(&pinned)).ok();+        Ok(json!({+            "steps": results,+            "stepCount": results.len(),+            "created": created,+            "targetDocument": pinned,+            "documentName": doc.as_ref().and_then(|d| d.string("GetTitle", &[])),+            "doc": doc.as_ref().map(Self::doc_info).unwrap_or(Value::Null),+        }))+    }++    /// The resolve-args for the pinned document ("the active one" only when+    /// nothing is pinned, which is the case for a script that starts by+    /// creating its own document).+    fn doc_arg(pinned: &Option<String>) -> Value {+        match pinned {+            Some(name) => json!({"name": name}),+            None => json!({}),+        }+    }++    /// One DSL op, as the live-proven COM call sequence, against the PINNED+    /// document.+    fn run_op(&mut self, op: &crate::script::Op, pinned: &Option<String>) -> Result<Value, HostError> {+        use crate::script::Op;+        let target = Self::doc_arg(pinned);+        match op {+            Op::NewPart => self.cmd_new_document(&json!({"type": "part"})),+            Op::NewAssembly => self.cmd_new_document(&json!({"type": "assembly"})),++            Op::SketchRect { plane, x, y, width, height } => {+                let doc = self.resolve(&target)?;+                let sm = Self::open_sketch(&doc, plane)?;+                // From here the sketch is OPEN. Every exit — the error path+                // included — must close it, or the user's SOLIDWORKS is left+                // parked in sketch-edit mode with a half-drawn profile on screen.+                let made = sm.call(+                    "CreateCornerRectangle",+                    &[+                        &Var::r8(*x),+                        &Var::r8(*y),+                        &Var::r8(0.0),+                        &Var::r8(x + width),+                        &Var::r8(y + height),+                        &Var::r8(0.0),+                    ],+                );+                Self::close_sketch(&sm)?;+                let segs = made?.as_array().len();+                if segs == 0 {+                    return Err(HostError::msg(+                        "SOLIDWORKS drew no rectangle — check that widthMm and heightMm are \+                         non-zero",+                    ));+                }+                Ok(json!({+                    "plane": plane,+                    "segments": segs,+                    "widthMm": width * 1000.0,+                    "heightMm": height * 1000.0,+                }))+            }++            Op::SketchCircle { plane, x, y, radius } => {+                let doc = self.resolve(&target)?;+                let sm = Self::open_sketch(&doc, plane)?;+                // CreateCircleByRadius is the modern form; CreateCircle (centre+                // plus a rim point) is what every older macro uses. Try both+                // rather than betting the op on one spelling — and close the+                // sketch either way.+                let made = sm+                    .call(+                        "CreateCircleByRadius",+                        &[&Var::r8(*x), &Var::r8(*y), &Var::r8(0.0), &Var::r8(*radius)],+                    )+                    .or_else(|_| {+                        sm.call(+                            "CreateCircle",+                            &[+                                &Var::r8(*x),+                                &Var::r8(*y),+                                &Var::r8(0.0),+                                &Var::r8(x + radius),+                                &Var::r8(*y),+                                &Var::r8(0.0),+                            ],+                        )+                    });+                Self::close_sketch(&sm)?;+                let made = made?;+                Ok(json!({+                    "plane": plane,+                    "radiusMm": radius * 1000.0,+                    "created": !made.is_null(),+                }))+            }++            Op::Extrude { depth, reverse } => {+                let doc = self.resolve(&target)?;+                // FeatureExtrusion3's 23 arguments, in the order proven live:+                // Sd, Flip, Dir, T1, T2, D1, D2, Dchk1, Dchk2, Ddir1, Ddir2,+                // Dang1, Dang2, OffsetReverse1, OffsetReverse2, TranslateSurface1,+                // TranslateSurface2, Merge, UseFeatScope, UseAutoSelect, T0,+                // StartOffset, FlipStartOffset.+                let f = doc+                    .obj("FeatureManager", &[])?+                    .ok_or_else(|| HostError::msg("no FeatureManager"))?+                    .call(+                        "FeatureExtrusion3",+                        &[+                            &Var::boolean(true),+                            &Var::boolean(false),+                            &Var::boolean(*reverse),+                            &Var::i4(0),+                            &Var::i4(0),+                            &Var::r8(*depth),+                            &Var::r8(0.01),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::r8(0.0174533),+                            &Var::r8(0.0174533),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(true),+                            &Var::boolean(true),+                            &Var::boolean(true),+                            &Var::i4(0),+                            &Var::r8(0.0),+                            &Var::boolean(false),+                        ],+                    )?;+                let feature = f.as_dispatch().map(Disp);+                Self::clear_selection(&doc);+                if feature.is_none() {+                    return Err(HostError::msg(+                        "SOLIDWORKS built no extrusion — the sketch may be open, unclosed, or \+                         self-intersecting",+                    ));+                }+                Ok(json!({+                    "feature": feature.and_then(|d| d.string("Name", &[])),+                    "depthMm": depth * 1000.0,+                }))+            }++            Op::Cut { depth, through_all } => {+                let doc = self.resolve(&target)?;+                // NOT PROVEN LIVE. swEndConditions_e: 1 = Through All, 0 = Blind.+                let end = if *through_all { 1 } else { 0 };+                let f = doc+                    .obj("FeatureManager", &[])?+                    .ok_or_else(|| HostError::msg("no FeatureManager"))?+                    .call(+                        "FeatureCut4",+                        &[+                            &Var::boolean(true),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::i4(end),+                            &Var::i4(0),+                            &Var::r8(*depth),+                            &Var::r8(0.0),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::r8(0.0174533),+                            &Var::r8(0.0174533),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(true),+                            &Var::boolean(true),+                            &Var::boolean(true),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::boolean(false),+                            &Var::i4(0),+                            &Var::r8(0.0),+                            &Var::boolean(false),+                        ],+                    )?;+                Self::clear_selection(&doc);+                Ok(json!({+                    "feature": f.as_dispatch().map(Disp).and_then(|d| d.string("Name", &[])),+                    "throughAll": through_all,+                    "depthMm": depth * 1000.0,+                    "proven": false,+                }))+            }++            Op::SetMaterial { name, database } => {+                let doc = self.resolve(&target)?;+                doc.call(+                    "SetMaterialPropertyName2",+                    &[&Var::bstr(""), &Var::bstr(database), &Var::bstr(name)],+                )?;+                Ok(json!({"material": name, "database": database, "current": Self::material_of(&doc, "")}))+            }++            Op::SetProp { name, value } => {+                let doc = self.resolve(&target)?;+                let mgr = doc+                    .obj("Extension", &[])?+                    .and_then(|e| e.obj("CustomPropertyManager", &[&Var::bstr("")]).ok().flatten())+                    .ok_or_else(|| HostError::msg("CustomPropertyManager unavailable"))?;+                // swCustomInfoText = 30; swCustomPropertyReplaceValue = 2+                let r = mgr.call(+                    "Add3",+                    &[&Var::bstr(name), &Var::i4(30), &Var::bstr(value), &Var::i4(2)],+                )?;+                Ok(json!({"property": name, "value": value, "code": r.as_i32()}))+            }++            Op::SaveAs { path } => {+                let doc = self.resolve(&target)?;+                // COPY mode, unlike the standalone swx_save_as verb's default.+                // A script step should put a FILE on disk, not silently retitle+                // the document it is in the middle of building — that is the+                // v0.2 rename bug wearing a different hat, and a script has no+                // obvious place for the caller to have consented to it.+                // swx_save_as {copy:false} remains the deliberate rename.+                if std::path::Path::new(path).exists() {+                    return Err(HostError::msg(format!(+                        "refusing to overwrite an existing file: {path}. A modelling script that \+                         silently replaces a file on disk is indistinguishable from one that \+                         destroys the user's work — choose a new name, or use swx_save_as, which \+                         is the verb where overwriting is an explicit act."+                    )));+                }+                let code = Self::save_as3(&doc, path, true)?;+                if code != 0 {+                    return Err(HostError::msg(format!(+                        "SOLIDWORKS refused to save {path}: {}",+                        Self::save_error_text(code)+                    )));+                }+                Ok(json!({+                    "savedAs": path,+                    "copy": true,+                    "bytes": std::fs::metadata(path).map(|m| m.len()).ok(),+                }))+            }++            Op::Rebuild => {+                let doc = self.resolve(&target)?;+                Ok(json!({"rebuilt": doc.call("EditRebuild3", &[])?.as_bool()}))+            }++            Op::ZoomFit => {+                let doc = self.resolve(&target)?;+                let _ = doc.call("ViewZoomtofit2", &[]);+                Ok(json!({"zoomedToFit": true}))+            }+        }+    }++    /// Select a plane by name and open a sketch on it. The five-argument legacy+    /// `SelectByID` is used deliberately: it is proven live here and needs no+    /// null callout argument, so there is one less thing to marshal wrong.+    fn open_sketch(doc: &Disp, plane: &str) -> Result<Disp, HostError> {+        // Start from a known-empty selection: SelectByID replaces the selection,+        // but anything the USER had selected before the script ran would+        // otherwise survive into the feature that consumes it, and whatever the+        // feature leaves selected would linger afterwards on their screen.+        let _ = doc.call("ClearSelection2", &[&Var::boolean(true)]);+        let selected =+            doc.call("SelectByID", &[&Var::bstr(plane), &Var::bstr("PLANE"), &Var::r8(0.0), &Var::r8(0.0), &Var::r8(0.0)])?+                .as_bool()+                .unwrap_or(false);+        if !selected {+            return Err(HostError::msg(format!(+                "no plane named '{plane}' in this document (the stock templates give you \+                 'Front Plane', 'Top Plane' and 'Right Plane')"+            )));+        }+        let sm = doc.obj("SketchManager", &[])?.ok_or_else(|| HostError::msg("no SketchManager"))?;+        sm.call("InsertSketch", &[&Var::boolean(true)])?;+        // Returned so the caller closes the SAME SketchManager it opened, and+        // can do so on the error path too.+        Ok(sm)+    }++    /// Close the open sketch. `InsertSketch(true)` toggles, and SOLIDWORKS+    /// leaves the finished sketch SELECTED — which is exactly what+    /// `FeatureExtrusion3` consumes, so no re-selection is needed (proven live).+    fn close_sketch(sm: &Disp) -> Result<(), HostError> {+        sm.call("InsertSketch", &[&Var::boolean(true)])?;+        Ok(())+    }++    /// Leave no selection behind. Called after a feature consumes its sketch, so+    /// the user does not come back to a part with something highlighted that+    /// they did not click.+    fn clear_selection(doc: &Disp) {+        let _ = doc.call("ClearSelection2", &[&Var::boolean(true)]);+    }+}++/// Preferences this bridge is willing to name, as (name, swUserPreferenceIntegerValue_e id).+/// Small on purpose: `swx_set_preference` reads every value back after writing+/// it, so anything listed here is something the bridge can PROVE it changed.+pub const PREFERENCES: &[(&str, i32)] = &[("lengthUnitRaw", 53), ("unitSystemRaw", 48)];
src/comhost/created_store.rsadded+112
@@ -0,0 +1,112 @@+//! The com host's own record of the documents it created, on disk.+//!+//! The host is killed and respawned by design — a wedged COM call cannot be+//! killed as a thread, which is the whole reason it lives in a child process.+//! But its in-memory record of what it created died with it, so the first thing+//! a respawn did was start refusing writes to the BRIDGE'S OWN documents:+//! fail-closed, but silently broken, and precisely after the recovery path the+//! architecture exists for.+//!+//! This file is written and read by the HOST, never by the server, which is what+//! keeps the host's veto independent. It lives beside the bridge's other scratch+//! state and `swx_uninstall` removes it.++use serde_json::Value;++fn path() -> std::path::PathBuf {+    crate::scratch::root().join("com-host-created.json")+}++/// The SOLIDWORKS session the stored record belongs to, and its documents.+///+/// The session id is what makes this fail CLOSED rather than open. Without it+/// the file said only `[{"title":"Part1","path":null}]`, and it was cleared only+/// on a clean `stop` — so after a crash, a `swx_kill`, or the user quitting+/// SOLIDWORKS themselves, it survived and the user's NEXT `Part1` matched. The+/// server's record is session-scoped, so the write was still refused end to end;+/// but a second veto that can be wrong is not a second veto.+pub fn load_session() -> (Option<i64>, Vec<(String, Option<String>)>) {+    let text = match std::fs::read_to_string(path()) {+        Ok(t) => t,+        Err(_) => return (None, Vec::new()),+    };+    let v: Value = match serde_json::from_str(&text) {+        Ok(v) => v,+        Err(_) => return (None, Vec::new()),+    };+    let session = v.get("session").and_then(|s| s.as_i64());+    let docs = v+        .get("documents")+        .and_then(|d| d.as_array())+        .map(|a| {+            a.iter()+                .filter_map(|e| {+                    let title = e.get("title")?.as_str()?.to_string();+                    let p = e+                        .get("path")+                        .and_then(|x| x.as_str())+                        .filter(|s| !s.is_empty())+                        .map(String::from);+                    Some((title, p))+                })+                .collect()+        })+        .unwrap_or_default();+    (session, docs)+}++/// Documents this host created, as (title, path-once-saved). Legacy shape.+pub fn load() -> Vec<(String, Option<String>)> {+    let text = match std::fs::read_to_string(path()) {+        Ok(t) => t,+        Err(_) => return Vec::new(),+    };+    let v: Value = match serde_json::from_str(&text) {+        Ok(v) => v,+        Err(_) => return Vec::new(),+    };+    v.as_array()+        .map(|a| {+            a.iter()+                .filter_map(|e| {+                    let title = e.get("title")?.as_str()?.to_string();+                    let p = e+                        .get("path")+                        .and_then(|x| x.as_str())+                        .filter(|s| !s.is_empty())+                        .map(String::from);+                    Some((title, p))+                })+                .collect()+        })+        .unwrap_or_default()+}++/// Best effort: a host that cannot write its diary still refuses correctly for+/// the rest of its own life, and a respawn simply starts from nothing (which+/// fails closed).+pub fn save(created: &[(String, Option<String>)]) {+    save_session(None, created)+}++/// Persist the record WITH the SOLIDWORKS session it belongs to.+pub fn save_session(session: Option<i64>, created: &[(String, Option<String>)]) {+    let rows: Vec<Value> = created+        .iter()+        .map(|(t, p)| serde_json::json!({"title": t, "path": p}))+        .collect();+    let p = path();+    if let Some(parent) = p.parent() {+        let _ = std::fs::create_dir_all(parent);+    }+    let _ = std::fs::write(+        p,+        serde_json::json!({"session": session, "documents": Value::Array(rows)}).to_string(),+    );+}++/// Forget everything — the SOLIDWORKS session ended, so its untitled numbering+/// restarts and no remembered title can be trusted.+pub fn clear() {+    let _ = std::fs::remove_file(path());+}
src/comhost/expr.rsadded+363
@@ -0,0 +1,363 @@+//! The tiny expression grammar behind `swx_com_eval`.+//!+//! The PowerShell sidecar's escape hatch was `Invoke-Expression` — a whole+//! script host, with `$sw` bound. There is no PowerShell in this bridge any+//! more, and Rust has no eval, so the escape hatch is now exactly the shape+//! that prototyping a verb actually needs and nothing more:+//!+//! ```text+//! $sw.RevisionNumber()+//! $sw.ActiveDoc.GetTitle()+//! $doc.Extension.CustomPropertyManager("").GetNames()+//! $sw.OpenDoc6("C:\\a.sldprt", 1, 1, "", 0, 0)+//! $doc.Extension.SelectByID2("Front Plane", "PLANE", 0, 0, 0, false, 0, null, 0)+//! ```+//!+//! A dotted chain of members, rooted at `$sw` (the application) or `$doc` (the+//! active document), with string / number / boolean literal arguments. That is+//! strictly less power than PowerShell had — and strictly more auditable, which+//! for a verb that drives a live CAD application is the better trade.+//!+//! Parsing lives here, outside `cfg(windows)`, so it is testable on any host.++use super::host::HostError;++#[derive(Debug, PartialEq, Clone)]+pub enum Literal {+    Str(String),+    Int(i32),+    Num(f64),+    Bool(bool),+    /// `null` / `nothing` — an EMPTY variant, which is how a late-bound caller+    /// passes "omitted" for an optional `[in]` object parameter (SOLIDWORKS+    /// uses those for callout/import-data arguments). Discovered while probing+    /// the live API: without it, half the interesting signatures are unreachable+    /// from the escape hatch.+    Null,+}++#[derive(Debug, PartialEq, Clone)]+pub struct Segment {+    pub name: String,+    /// Empty for a bare member access (`.ActiveDoc`); the parser does not+    /// distinguish `.Foo` from `.Foo()` because IDispatch does not either.+    pub args: Vec<Literal>,+}++/// `$sw.Extension.Foo("bar", 3, true)` -> `("sw", [Extension, Foo(...)])`.+pub fn parse_chain(expr: &str) -> Result<(String, Vec<Segment>), HostError> {+    let expr = expr.trim();+    let rest = expr.strip_prefix('$').ok_or_else(|| {+        HostError::msg("expression must start with $sw or $doc, e.g. \"$sw.RevisionNumber()\"")+    })?;+    let mut chars = rest.chars().peekable();++    let mut root = String::new();+    while let Some(&c) = chars.peek() {+        if c == '.' {+            break;+        }+        root.push(c);+        chars.next();+    }+    if root.is_empty() {+        return Err(HostError::msg("expression must name a root: $sw or $doc"));+    }++    let mut segments = Vec::new();+    while chars.peek() == Some(&'.') {+        chars.next();+        let mut name = String::new();+        while let Some(&c) = chars.peek() {+            if c.is_alphanumeric() || c == '_' {+                name.push(c);+                chars.next();+            } else {+                break;+            }+        }+        if name.is_empty() {+            return Err(HostError::msg("expected a member name after '.'"));+        }+        let mut args = Vec::new();+        if chars.peek() == Some(&'(') {+            chars.next();+            loop {+                while chars.peek().is_some_and(|c| c.is_whitespace() || *c == ',') {+                    chars.next();+                }+                match chars.peek().copied() {+                    None => return Err(HostError::msg("unclosed '(' in expression")),+                    Some(')') => {+                        chars.next();+                        break;+                    }+                    Some(quote @ ('"' | '\'')) => {+                        chars.next();+                        let mut s = String::new();+                        loop {+                            match chars.next() {+                                None => return Err(HostError::msg("unterminated string literal")),+                                // \\ and \" survive the JSON transport as one char each;+                                // inside the expression a backslash is literal, which is+                                // what a Windows path needs.+                                Some(c) if c == quote => break,+                                Some(c) => s.push(c),+                            }+                        }+                        args.push(Literal::Str(s));+                    }+                    Some(_) => {+                        let mut tok = String::new();+                        while let Some(&c) = chars.peek() {+                            if c == ',' || c == ')' {+                                break;+                            }+                            tok.push(c);+                            chars.next();+                        }+                        let tok = tok.trim();+                        args.push(match tok.to_ascii_lowercase().as_str() {+                            "true" => Literal::Bool(true),+                            "false" => Literal::Bool(false),+                            "null" | "nothing" | "empty" => Literal::Null,+                            _ => {+                                if let Ok(i) = tok.parse::<i32>() {+                                    Literal::Int(i)+                                } else if let Ok(f) = tok.parse::<f64>() {+                                    Literal::Num(f)+                                } else {+                                    return Err(HostError::msg(format!(+                                        "unsupported literal '{tok}' — arguments may be quoted \+                                         strings, numbers or true/false"+                                    )));+                                }+                            }+                        });+                    }+                }+            }+        }+        segments.push(Segment { name, args });+    }+    if segments.is_empty() {+        return Err(HostError::msg(+            "expression must call at least one member, e.g. $sw.RevisionNumber()",+        ));+    }+    Ok((root, segments))+}++/// Which COM members `swx_com_eval` will evaluate — an ALLOWLIST.+///+/// The escape hatch exists to PROVE OUT a capability against a real install+/// before it becomes a verb, which in practice means READS: version strings,+/// property queries, enumeration, signature discovery. Every finding in this+/// bridge's parity report was made that way.+///+/// It started as a denylist of the members that write, and that was the wrong+/// shape. A denylist has to anticipate every dangerous member of an API with+/// thousands of them, and it did not: `SendMsgToUser2` puts a MODAL on the+/// user's screen and wedges the com host until the watchdog kills it — the+/// exact disruption the whole effort exists to prevent — while+/// `SetUserPreferenceToggle` permanently changes their settings and+/// `ForceRebuild3` rebuilds their model. None were on the list, because nobody+/// thought of them. An allowlist fails the other way: a member nobody thought+/// of is REFUSED, with a message saying how to add it.+///+/// Two rules, both conservative:+///   * a member whose name begins `Get`, `Is`, `Has`, `Can` or `Enum` reads;+///   * anything else must be named in [`READ_MEMBERS`].+pub const READ_MEMBERS: &[&str] = &[+    // application + document navigation (properties that return objects)+    "activedoc", "extension", "frame", "sketchmanager", "featuremanager",+    "configurationmanager", "activeconfiguration", "interferencedetectionmanager",+    "custompropertymanager", "createmassproperty", "firstfeature", "featurebyname",+    "parameter", "visible", "commandinprogress", "framestate", "revisionnumber",+    // names and scalar reads+    "name", "name2", "value", "systemvalue", "count", "typename", "equation",+    // mass / geometry reads+    "mass", "volume", "surfacearea", "density", "centerofmass", "components",+    "referencedconfiguration",+    // rebuild / health reads+    "needsrebuild", "needsrebuild2",+];++/// Members explicitly called out as REFUSED, so the error can say why rather+/// than just "not on the list". Everything not allowed is refused regardless;+/// this is only for the ones worth naming.+pub const NAMED_HAZARDS: &[(&str, &str)] = &[+    ("saveas", "writes a file, and SaveAs3 picks its format from the destination extension"),+    ("saveas2", "writes a file"),+    ("saveas3", "writes a file, bypassing the blocked-extension check and Copy mode"),+    ("saveas4", "writes a file"),+    ("save", "writes the user's file"),+    ("save2", "writes the user's file"),+    ("save3", "writes the user's file"),+    ("savepackandgo", "writes files"),+    ("closedoc", "discards unsaved work"),+    ("closealldocuments", "discards unsaved work in every open document"),+    ("exitapp", "quits SOLIDWORKS — which on a Connected edition this bridge cannot restart"),+    ("sendmsgtouser", "puts a MODAL DIALOG on the user's screen and blocks until someone answers it"),+    ("sendmsgtouser2", "puts a MODAL DIALOG on the user's screen and blocks until someone answers it"),+    ("setuserpreferencetoggle", "permanently changes the user's SOLIDWORKS preferences"),+    ("setuserpreferenceinteger", "permanently changes the user's SOLIDWORKS preferences"),+    ("forcerebuild3", "rebuilds the user's model"),+    ("editrebuild3", "rebuilds the user's model"),+    ("setsaveflag", "marks the user's document dirty"),+    ("deleteselection", "deletes geometry"),+    ("deleteselection2", "deletes geometry"),+    ("editdelete", "deletes geometry"),+];++/// Is this member a read? See [`READ_MEMBERS`].+pub fn is_read_member(name: &str) -> bool {+    let lower = name.to_ascii_lowercase();+    if READ_MEMBERS.contains(&lower.as_str()) {+        return true;+    }+    ["get", "is", "has", "can", "enum"].iter().any(|p| lower.starts_with(p))+}++/// The first member of `expr` this bridge will not evaluate, with the reason.+/// Case-insensitive, because IDispatch name resolution is.+pub fn refused_member(expr: &str) -> Option<(String, String)> {+    let (_, segments) = parse_chain(expr).ok()?;+    segments.iter().find(|s| !is_read_member(&s.name)).map(|s| {+        let lower = s.name.to_ascii_lowercase();+        let why = NAMED_HAZARDS+            .iter()+            .find(|(n, _)| *n == lower)+            .map(|(_, w)| (*w).to_string())+            .unwrap_or_else(|| {+                "it is not on the read allowlist, and this verb evaluates reads only".to_string()+            });+        (s.name.clone(), why)+    })+}++#[cfg(test)]+mod tests {+    use super::*;++    fn seg(name: &str, args: Vec<Literal>) -> Segment {+        Segment { name: name.to_string(), args }+    }++    #[test]+    fn parses_a_bare_call() {+        let (root, segs) = parse_chain("$sw.RevisionNumber()").unwrap();+        assert_eq!(root, "sw");+        assert_eq!(segs, vec![seg("RevisionNumber", vec![])]);+    }++    #[test]+    fn parses_a_chain_with_mixed_literals() {+        let (root, segs) =+            parse_chain("$doc.Extension.CustomPropertyManager(\"\").Add3('PartNo', 30, 1.5, true)")+                .unwrap();+        assert_eq!(root, "doc");+        assert_eq!(segs.len(), 3);+        assert_eq!(segs[1], seg("CustomPropertyManager", vec![Literal::Str(String::new())]));+        assert_eq!(+            segs[2].args,+            vec![+                Literal::Str("PartNo".into()),+                Literal::Int(30),+                Literal::Num(1.5),+                Literal::Bool(true)+            ]+        );+    }++    #[test]+    fn keeps_backslashes_in_windows_paths() {+        let (_, segs) = parse_chain(r#"$sw.OpenDoc6("C:\parts\a.sldprt", 1, 1, "", 0, 0)"#).unwrap();+        assert_eq!(segs[0].args[0], Literal::Str(r"C:\parts\a.sldprt".into()));+        assert_eq!(segs[0].args.len(), 6);+    }++    #[test]+    fn bare_member_access_needs_no_parens() {+        let (_, segs) = parse_chain("$sw.ActiveDoc.GetTitle()").unwrap();+        assert_eq!(segs[0], seg("ActiveDoc", vec![]));+        assert_eq!(segs[1].name, "GetTitle");+    }++    #[test]+    fn parses_null_for_omitted_object_arguments() {+        let (_, segs) =+            parse_chain(r#"$doc.Extension.SelectByID2("Front Plane","PLANE",0,0,0,false,0,null,0)"#)+                .unwrap();+        assert_eq!(segs[1].args.len(), 9);+        assert_eq!(segs[1].args[7], Literal::Null);+        // the spellings a caller actually reaches for, case-insensitively+        for spelling in ["null", "NULL", "Nothing", "empty"] {+            let (_, s) = parse_chain(&format!("$sw.Foo({spelling})")).unwrap();+            assert_eq!(s[0].args[0], Literal::Null, "{spelling}");+        }+    }++    #[test]+    fn the_escape_hatch_evaluates_reads_and_nothing_else() {+        // A denylist had to anticipate every dangerous member of an API with+        // thousands; it missed the ones that raise a modal on the user's screen,+        // change their preferences, and rebuild their model. An allowlist fails+        // the other way.+        for bad in [+            r#"$doc.SaveAs3("C:\x.wrl", 0, 1)"#,+            r#"$doc.Extension.SaveAs3("C:\x.step", 0, 1)"#,+            "$doc.Save3(1, 0, 0)",+            "$sw.CloseAllDocuments(true)",+            "$sw.ExitApp()",+            r#"$sw.CloseDoc("Part1")"#,+            "$doc.EditDelete()",+            // the four a denylist missed+            r#"$sw.SendMsgToUser2("hi", 1, 1)"#,+            "$sw.SetUserPreferenceToggle(1, true)",+            "$doc.SetSaveFlag()",+            "$doc.ForceRebuild3(false)",+            "$doc.EditRebuild3()",+            // ...and one nobody has thought of yet, which is the point+            "$doc.SomeFutureDestructiveMember()",+        ] {+            assert!(refused_member(bad).is_some(), "should be refused: {bad}");+        }+        // Reads — what the hatch is actually for — still go through.+        for ok in [+            "$sw.RevisionNumber()",+            "$doc.Extension.CustomPropertyManager(\"\").GetNames()",+            "$doc.GetBodies2(0, true)",+            "$sw.Frame().GetHWnd()",+            "$doc.FirstFeature().GetNextFeature().Name()",+            "$doc.Extension.CreateMassProperty().Mass()",+            "$sw.IsPLMConnected()",+            "$doc.GetEquationMgr().GetCount()",+        ] {+            assert!(refused_member(ok).is_none(), "should be allowed: {ok}");+        }+        // The refusal explains ITSELF for the hazards worth naming.+        let (m, why) = refused_member(r#"$sw.SendMsgToUser2("x", 1, 1)"#).unwrap();+        assert_eq!(m, "SendMsgToUser2");+        assert!(why.contains("MODAL"), "{why}");+        // An unparseable expression names no member; the parser rejects it later.+        assert!(refused_member("not an expression").is_none());+    }+++    #[test]+    fn rejects_what_it_cannot_honestly_run() {+        for bad in [+            "sw.RevisionNumber()",                 // no $+            "$",                                   // no root+            "$sw",                                 // no member+            "$sw.Foo(",                            // unclosed+            "$sw.Foo(\"unterminated)",             // unterminated string+            "$sw.Foo($bar)",                       // no variables+            "$sw.",                                // no member name+            "Remove-Item C:\\",                    // not an expression at all+        ] {+            assert!(parse_chain(bad).is_err(), "should have been rejected: {bad}");+        }+    }+}
src/comhost/host.rsadded+476
@@ -0,0 +1,476 @@+//! `swx-bridge --com-host` — the child process, from the inside.+//!+//! It reads one JSON request per line on stdin, hands it to a [`Backend`], and+//! writes one JSON response per line on stdout. Nothing but protocol lines ever+//! reaches stdout; diagnostics go to stderr, which the server mirrors.+//!+//! Two backends implement the same command set:+//!   * [`super::mock::MockBackend`] — a tiny in-memory fake SOLIDWORKS. Runs+//!     everywhere; what the whole test suite exercises.+//!   * [`super::com::ComBackend`] — the real thing, late-bound IDispatch against+//!     a live `SldWorks.Application` (Windows only).+//!+//! A backend call that panics is caught and answered as a normal `ok:false`+//! error: a panic must never take the COM object (and the user's open+//! documents) down with it.++use serde_json::{json, Value};+use std::io::{BufRead, Write};++/// A command failure the child reports as `{"ok":false,...}`.+#[derive(Debug)]+pub struct HostError {+    pub message: String,+    pub detail: Option<String>,+    /// A stable, branchable code. The live run came back with four failures+    /// carrying `errorCode: None` and prose only — a caller cannot branch on+    /// "document not open: Part2".+    pub code: Option<String>,+}++impl HostError {+    pub fn msg(message: impl Into<String>) -> Self {+        Self { message: message.into(), detail: None, code: None }+    }+    pub fn detailed(message: impl Into<String>, detail: impl Into<String>) -> Self {+        Self { message: message.into(), detail: Some(detail.into()), code: None }+    }+    /// A failure a caller can branch on.+    pub fn coded(code: &str, message: impl Into<String>) -> Self {+        Self { message: message.into(), detail: None, code: Some(code.to_string()) }+    }+}++/// Commands that change NOTHING the user can lose: no document data, no+/// geometry, no file on disk. Everything else must pass+/// [`Backend::authorize_command`] before it runs.+///+/// The list is inverted ON PURPOSE. An earlier version authorized a set of+/// remembered mutating commands, and the set was incomplete: `run_script` — the+/// whole modelling DSL — `props_set`, `rebuild_check` and `eval` were all+/// missing, so a forged request over this protocol could sketch and extrude into+/// the user's open document while a forged `save` was correctly vetoed. Listing+/// what is SAFE means a command nobody has classified is refused rather than+/// waved through, and a new command added tomorrow is deny-by-default.+pub const READ_ONLY_COMMANDS: &[&str] = &[+    "ping",+    "status",+    "start",+    "docs",+    // Read-only ONLY: `open {readOnly:false}` is treated as mutating — see+    // `is_mutating`.+    "open",+    "app_state",+    "document_info",+    "design_info",+    "get_parameters",+    "inspect_bodies",+    "mass_properties",+    "bom",+    "interference",+    "props_get",+    "get_preferences",+    "check_recovery",+    "cloud_status",+    // ── the three exemptions worth naming ───────────────────────────────────+    // These are NOT side-effect-free, and a list called "read only" that+    // contained them would be a lie. They are exempt because what they change is+    // the VIEW, not the work: nothing they touch reaches disk, geometry, or the+    // saved state of a document, and every one of them is undone by the user+    // clicking somewhere else.+    //+    //   `show`               ActivateDoc3 + ViewZoomtofit2 — brings a document+    //                        to the front and reframes the camera. Refusing this+    //                        would make swx_show_* useless on the user's own+    //                        documents, which is the one thing it is for.+    //   `activate_document`  ActivateDoc3 — moves which document is in front.+    //                        Same reasoning; it is also how a caller AVOIDS the+    //                        riskier alternative of guessing at the active doc.+    //   `interference`       three `try_put`s on the assembly's+    //                        InterferenceDetectionManager (UseTransform,+    //                        TreatCoincidenceAsInterference,+    //                        MakeInterferingPartsTransparent). Transient+    //                        settings on a manager object that `Done()` tears+    //                        down on every path, including a panic, via a drop+    //                        guard. Nothing survives the call.+    //+    // All three still carry `windowEtiquette:"background"` and none of them+    // raises SOLIDWORKS over what the user is doing.+    "show",+    "activate_document",+    // These CREATE a document, which is the one write that needs no permission:+    // the result is the bridge's own, and the host records it as such.+    "new_document",+    "import",+    //   `launch_shortcut`    STARTS SOLIDWORKS, by invoking the shortcut the+    //                        3DEXPERIENCE Platform installed. A fourth+    //                        exemption, and it needs its own justification+    //                        because it runs an external process: starting an+    //                        application CREATES NOTHING and DESTROYS NOTHING —+    //                        there is no document to be foreign, no file to+    //                        clobber, and no work to lose. Requiring the write+    //                        opt-in for it would mean the bridge could not do+    //                        the one thing the user most wants when SOLIDWORKS+    //                        is closed. It is gated instead at the SERVER, where+    //                        swx_start requires a `reason` and records the launch+    //                        in the ledger. Note the asymmetry with `stop`,+    //                        which IS always gated: starting is recoverable by+    //                        closing, and on a Connected edition stopping was —+    //                        until this route existed — not recoverable at all.+    "launch_shortcut",+];++/// Does this command need authorization? Anything not known to be side-effect+/// free — plus the one command whose SAFETY DEPENDS ON ITS ARGUMENTS.+///+/// `open` is on the safe list because opening a document read-only changes+/// nothing. `open {readOnly:false}` is a different act: it takes a WRITE LOCK on+/// the user's file, and an older-version document is converted and dirtied in+/// memory, so SOLIDWORKS offers to save it on close. Round 7 changed the+/// default and left the harmful mode caller-settable on the safe list, where+/// `authorize_command` never runs.+pub fn is_mutating(cmd: &str, args: &Value) -> bool {+    if cmd == "open" {+        return !args.get("readOnly").and_then(|v| v.as_bool()).unwrap_or(true);+    }+    !READ_ONLY_COMMANDS.contains(&cmd)+}++/// What a com-host backend must do. Deliberately narrow: one string command,+/// one JSON args blob, one JSON result — the same shape the wire speaks.+pub trait Backend {+    /// Commands this backend answers (used for the unknown-command hint).+    fn commands(&self) -> &'static [&'static str];+    fn call(&mut self, cmd: &str, args: &Value) -> Result<Value, HostError>;++    /// THE HOST'S OWN VETO, applied by the dispatch loop to every mutating+    /// command before it runs.+    ///+    /// This is deliberately part of the trait rather than a call inside each+    /// command: a command that forgets to authorize itself cannot exist, because+    /// nothing reaches a backend method without passing through here first.+    fn authorize_command(&mut self, cmd: &str, args: &Value) -> Result<(), HostError>;++    /// Record a document THIS HOST brought into existence, from the `{title,+    /// path}` shape every doc-returning result carries.+    ///+    /// Called by the dispatch loop, not by the commands, and that is the whole+    /// point. `cmd_import` has THREE success paths (LoadFile4, a handle+    /// recovered from ActiveDoc, and the LoadFile2 fallback) and only the first+    /// of them registered — so on the live machine the host's independent veto+    /// refused to close the very document the bridge had just imported. Per-verb+    /// registration means the next verb, or the next branch inside one, can+    /// forget. Registering from the RESULT cannot.+    fn register_created(&mut self, doc: &Value);+}++/// Result keys that mean "this command brought a document into existence".+///+/// `opened` is deliberately absent: opening the USER'S file does not make it+/// ours, and treating it as a creation would hand the bridge ownership of+/// every document it ever looked at.+pub const CREATED_KEYS: &[&str] = &["created", "imported"];++/// The document a result says it created, if any.+///+/// IT CAN BE NESTED. `run_script` reports the `new_document` result it ran as+/// its own `created`, so the {title, path} sits one level down — and this+/// function used to stop at the outer object, whose `title` is absent. The+/// effect was that every document the modelling DSL created was invisible to+/// the com host's OWN ownership record while the SERVER's record (which does+/// descend) had it: the two vetoes disagreed, and the host refused to close,+/// save or property-set the very part the bridge had just built+/// ("this document was not created by this bridge"). Live-proven on+/// SOLIDWORKS Connected R2026x while building the NSF machine crate.+pub fn created_document(result: &Value) -> Option<&Value> {+    let outer = CREATED_KEYS.iter().find_map(|k| result.get(*k)).filter(|d| d.is_object())?;+    Some(match outer.get("created").filter(|c| c.is_object()) {+        Some(inner) => inner,+        None => outer,+    })+}++/// The command set, shared by both backends so they cannot drift apart.+pub const COMMANDS: &[&str] = &[+    "ping",+    "status",+    "start",+    "launch_shortcut",+    "stop",+    "docs",+    // Read-only ONLY: `open {readOnly:false}` is treated as mutating — see+    // `is_mutating`.+    "open",+    "close_doc",+    "save",+    "export",+    "props_get",+    "props_set",+    "mass_properties",+    "bom",+    "interference",+    "rebuild_check",+    "pack_and_go",+    "eval",+    // v0.3 — the Fusion-parity surface.+    "new_document",+    "activate_document",+    "close_all_documents",+    "document_info",+    "design_info",+    "get_parameters",+    "set_parameter",+    "inspect_bodies",+    "import",+    "save_as",+    "run_script",+    "run_macro",+    "add_component",+    "get_preferences",+    "set_preference",+    "show",+    "check_recovery",+    "app_state",+    "cloud_status",+];++/// Diagnostics go to stderr RAW: the server mirrors them with the `[swx-com]`+/// tag, so labelling here too would double it — and anything a COM component+/// prints on its own gets the same tag either way.+pub fn log(msg: &str) {+    eprintln!("{msg}");+    let _ = std::io::stderr().flush();+}++fn send(value: &Value) {+    let mut out = std::io::stdout().lock();+    let _ = writeln!(out, "{}", serde_json::to_string(value).unwrap_or_else(|_| "{}".into()));+    let _ = out.flush();+}++fn make_backend() -> Box<dyn Backend> {+    #[cfg(windows)]+    {+        if !crate::is_mock() {+            return Box::new(super::com::ComBackend::new());+        }+    }+    Box::new(super::mock::MockBackend::new())+}++/// Poll the parent server's liveness; if it is gone, exit — even while a COM+/// call is wedged on the main thread. The main loop only notices a dead parent+/// at stdin EOF, which is BETWEEN requests; a server hard-killed (SIGKILL / end+/// task) mid-verb would otherwise leave this child holding a COM object forever.+/// That is the exact failure the child-process design exists to prevent, so it+/// gets a dedicated watchdog thread rather than relying on EOF.+///+/// KNOWN RESIDUAL — pid reuse. Liveness is keyed on the parent PID, so if the OS+/// recycles that PID onto an unrelated process within the ~1s poll window, this+/// reads the parent as still alive and the child lingers until stdin EOF (or the+/// next COM call returns) catches it instead. The window is small and the+/// fallback is benign (a slightly delayed exit, never a wrong kill), so we+/// accept it rather than pay for handle-identity tracking across the spawn+/// boundary; it cannot be dynamically exercised in this environment anyway.+fn spawn_parent_watchdog() {+    let parent: Option<u32> =+        std::env::var("SWX_PARENT_PID").ok().and_then(|s| s.parse().ok());+    let parent = match parent {+        Some(p) if p != 0 => p,+        _ => return, // run by hand (no parent to watch) — nothing to do+    };+    std::thread::Builder::new()+        .name("swx-comhost-watchdog".into())+        .spawn(move || loop {+            std::thread::sleep(std::time::Duration::from_secs(1));+            if !parent_alive(parent) {+                log(&format!("parent server (pid {parent}) is gone; exiting"));+                // Hard exit: a wedged COM call means we cannot unwind cleanly,+                // and leaving no orphan is what matters here.+                std::process::exit(0);+            }+        })+        .ok();+}++#[cfg(unix)]+fn parent_alive(pid: u32) -> bool {+    // /proc entry present AND not a zombie awaiting reap.+    match std::fs::read_to_string(format!("/proc/{pid}/stat")) {+        Ok(stat) => stat.rsplit(')').next().map(|s| !s.trim_start().starts_with('Z')).unwrap_or(false),+        Err(_) => false,+    }+}++#[cfg(windows)]+fn parent_alive(pid: u32) -> bool {+    use windows::Win32::Foundation::{CloseHandle, WAIT_TIMEOUT};+    use windows::Win32::System::Threading::{+        OpenProcess, WaitForSingleObject, PROCESS_SYNCHRONIZE,+    };+    unsafe {+        // WaitForSingleObject(h, 0), NOT GetExitCodeProcess: a process handle is+        // signaled once the process exits, so WAIT_TIMEOUT means "still running"+        // and anything else means "exited". This sidesteps the STILL_ACTIVE+        // (259) ambiguity entirely — a parent that genuinely exits with code 259+        // would be misread as alive by an exit-code check, but its handle is+        // still signaled, so the wait reports it correctly.+        match OpenProcess(PROCESS_SYNCHRONIZE, false, pid) {+            Ok(h) if !h.is_invalid() => {+                let alive = WaitForSingleObject(h, 0) == WAIT_TIMEOUT;+                let _ = CloseHandle(h);+                alive+            }+            _ => false, // cannot open it (exited/reaped/denied) → treat as gone+        }+    }+}++/// Child main loop. Never returns normally except on `__exit__` / EOF.+pub fn run() {+    let pid = std::process::id();+    log(&format!("starting (pid {pid}, mock={})", crate::is_mock()));+    spawn_parent_watchdog();+    let mut backend = make_backend();++    send(&json!({"event": "ready", "pid": pid}));++    // Test-only knob: emit junk around every response so the SERVER's+    // skip-what-you-cannot-parse path is exercised over the real wire+    // (tests/protocol.rs). Never set in production.+    let noisy = std::env::var("SWX_MOCK_NOISE").as_deref() == Ok("1");++    let stdin = std::io::stdin();+    for line in stdin.lock().lines() {+        let line = match line {+            Ok(l) => l,+            Err(e) => {+                log(&format!("stdin read failed: {e}; exiting"));+                break;+            }+        };+        let line = line.trim();+        if line.is_empty() {+            continue;+        }+        let req: Value = match serde_json::from_str(line) {+            Ok(v) => v,+            Err(e) => {+                send(&json!({"id": Value::Null, "ok": false, "error": format!("bad request json: {e}")}));+                continue;+            }+        };+        let cmd = req.get("cmd").and_then(|v| v.as_str()).unwrap_or("").to_string();+        if cmd == "__exit__" {+            log("exit requested; shutting down");+            break;+        }+        let id = req.get("id").cloned().unwrap_or(Value::Null);+        let args = req.get("args").cloned().unwrap_or_else(|| json!({}));++        if noisy {+            let mut out = std::io::stdout().lock();+            let _ = writeln!(out, "this line is not JSON at all");+            let _ = writeln!(out, "{}", json!({"event": "noise"}));+            let _ = writeln!(out, "{}", json!({"id": 0, "ok": true, "result": {"stale": true}}));+            let _ = out.flush();+        }++        if !backend.commands().contains(&cmd.as_str()) {+            send(&json!({+                "id": id,+                "ok": false,+                "error": format!("unknown command: {cmd}"),+                "commands": backend.commands(),+            }));+            continue;+        }++        // DENY BY DEFAULT. Every mutating command is authorized by the backend+        // ITSELF — from its own record of the documents it created and its own+        // view of the environment — before it is allowed to run. The server's+        // decision never reaches this point as anything but a hint.+        if is_mutating(&cmd, &args) {+            let verdict = std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| {+                backend.authorize_command(&cmd, &args)+            }));+            match verdict {+                Ok(Ok(())) => {}+                Ok(Err(e)) => {+                    send(&json!({"id": id, "ok": false, "error": e.message, "detail": e.detail, "errorCode": e.code}));+                    continue;+                }+                Err(_) => {+                    send(&json!({+                        "id": id,+                        "ok": false,+                        "error": format!("com host could not authorize '{cmd}' and refuses it"),+                        "detail": "The authorization check itself panicked. Refusing is the only \+                                   safe answer to a guard that did not complete.",+                    }));+                    continue;+                }+            }+        }++        // A backend panic (a late-bound COM call meeting something it did not+        // expect) becomes an error response, not a dead child.+        let result = std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| {+            backend.call(&cmd, &args)+        }));+        match result {+            Ok(Ok(value)) => {+                // STRUCTURAL REGISTRATION. Any command whose result names a+                // document it created owns that document from here, whichever+                // internal branch produced it.+                if let Some(doc) = created_document(&value) {+                    let doc = doc.clone();+                    let _ = std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| {+                        backend.register_created(&doc)+                    }));+                }+                send(&json!({"id": id, "ok": true, "result": value}))+            }+            Ok(Err(e)) => send(+                &json!({"id": id, "ok": false, "error": e.message, "detail": e.detail, "errorCode": e.code}),+            ),+            Err(panic) => {+                let what = panic+                    .downcast_ref::<&str>()+                    .map(|s| s.to_string())+                    .or_else(|| panic.downcast_ref::<String>().cloned())+                    .unwrap_or_else(|| "unknown panic".into());+                log(&format!("PANIC in '{cmd}': {what}"));+                send(&json!({+                    "id": id,+                    "ok": false,+                    "error": format!("com host panicked serving '{cmd}': {what}"),+                    "detail": "The COM object survived; retry, or report this with the args you used.",+                }));+            }+        }+    }+}++#[cfg(test)]+mod tests {+    use super::*;+    use serde_json::json;++    #[test]+    fn a_created_document_is_found_flat_and_nested() {+        let flat = json!({"created": {"title": "Part1", "path": ""}});+        assert_eq!(created_document(&flat).unwrap()["title"], "Part1");+        let imported = json!({"imported": {"title": "step.sldprt"}});+        assert_eq!(created_document(&imported).unwrap()["title"], "step.sldprt");+        // run_script's shape: the new_document RESULT is the `created` value.+        let nested = json!({+            "created": {"created": {"title": "Part2", "path": ""}, "template": "t.prtdot", "type": "part"},+            "stepCount": 3+        });+        assert_eq!(created_document(&nested).unwrap()["title"], "Part2");+        // an `opened` document is somebody else's+        assert!(created_document(&json!({"opened": {"title": "theirs.sldprt"}})).is_none());+        assert!(created_document(&json!({"stepCount": 1})).is_none());+    }+}
src/comhost/mock.rsadded+1682
@@ -0,0 +1,1682 @@+//! MockBackend — a fake SOLIDWORKS speaking the com-host command set.+//!+//! Selected by `SWX_MOCK=1` or any non-Windows host, so the bridge's whole verb+//! surface (routing, hints, error shapes, BOM/CSV plumbing, the stdio protocol+//! itself) is exercisable with no SOLIDWORKS and no Windows.+//!+//! It models a tiny in-memory app: open documents, custom properties, canned+//! mass properties, a 3-part demo assembly BOM. The canned values are the ones+//! the test suite asserts on — keep the RESPONSE SHAPES identical to+//! [`super::com::ComBackend`], because the mock's whole value is that a test+//! written against it stays true against the real thing.++use super::host::{Backend, HostError, COMMANDS};+use serde_json::{json, Map, Value};++/// `.ext` -> the `type` string every doc-shaped response carries.+pub const DOC_TYPES: &[(&str, &str)] = &[+    (".sldprt", "part"),+    (".sldasm", "assembly"),+    (".slddrw", "drawing"),+];++/// Extension -> doc type, case-insensitively. `None` for anything else.+pub fn doc_type_of(path: &str) -> Option<&'static str> {+    let lower = path.to_ascii_lowercase();+    DOC_TYPES.iter().find(|(ext, _)| lower.ends_with(ext)).map(|(_, t)| *t)+}++/// Last path segment, splitting on BOTH separators: these are Windows paths+/// that the mock may well be handling on Linux, where `/` alone would return+/// the entire string.+pub fn base_name(path: &str) -> &str {+    path.rsplit(['/', '\\']).next().unwrap_or(path)+}++/// `base_name` minus the final extension.+pub fn file_stem(path: &str) -> &str {+    let name = base_name(path);+    match name.rfind('.') {+        Some(i) if i > 0 => &name[..i],+        _ => name,+    }+}++/// Directory part of a path, splitting on both separators ("" if none).+pub fn dir_name(path: &str) -> &str {+    match path.rfind(['/', '\\']) {+        Some(i) => &path[..i],+        None => "",+    }+}++/// A canned solid body in the `swx_inspect_bodies` shape (millimetres), so a+/// test written against the mock stays true against the real backend.+fn mock_body(name: &str, x: f64, y: f64, z: f64) -> Value {+    let vol = x * y * z;+    let area = 2.0 * (x * y + y * z + x * z);+    json!({+        "name": name,+        "bbox": {"minMm": [0.0, 0.0, 0.0], "maxMm": [x, y, z]},+        "sizeMm": {"x": x, "y": y, "z": z},+        "volumeMm3": vol,+        "areaMm2": area,+        "massKg": vol * 1.0e-9 * 2700.0,+        "centerOfMassMm": [x / 2.0, y / 2.0, z / 2.0],+        "faceCount": 6,+        "visible": true,+        "isSolid": true,+    })+}++struct MockDoc {+    /// The IDENTITY key. For a document that has never been saved this is a+    /// synthetic `untitled:Part1` — SOLIDWORKS reports an empty `GetPathName()`+    /// for those, and the mock has to model that faithfully or every+    /// new-document test would be testing a fiction.+    path: String,+    title: String,+    saved: bool,+    doc_type: &'static str,+    config: String,+    dirty: bool,+    props: Map<String, Value>,+    material: Option<String>,+    /// name -> value in METRES, mirroring IDimension::SystemValue.+    dimensions: Map<String, Value>,+    bodies: Vec<Value>,+    /// Component instances, for an assembly: (file, configuration). The mock's+    /// BOM aggregates THESE when there are any, so a test can insert components+    /// and then read a BOM built from what it inserted.+    components: Vec<(String, String)>,+}++impl MockDoc {+    fn opened(path: String, doc_type: &'static str, config: String) -> MockDoc {+        let title = base_name(&path).to_string();+        MockDoc {+            path,+            title,+            saved: true,+            doc_type,+            config,+            dirty: false,+            props: Map::new(),+            material: None,+            dimensions: Map::new(),+            bodies: Vec::new(),+            components: Vec::new(),+        }+    }+}++pub struct MockBackend {+    running: bool,+    /// The host's OWN record of what it created, PERSISTED — see+    /// `comhost::created_store`. The com host is killed and respawned by design,+    /// so an in-process-only record means a respawn starts refusing writes to+    /// the bridge's own documents.+    created: Vec<(String, Option<String>)>,+    /// The SOLIDWORKS session `created` belongs to — see `ComBackend`.+    created_session: Option<i64>,+    /// Which SOLIDWORKS "session" this is. A real SOLIDWORKS gets a new process+    /// id when it restarts AND restarts its Part1/Part2 numbering, which is+    /// exactly why document ownership has to be scoped to a session — so the+    /// mock models both, or the suite could not prove the scoping works.+    generation: i64,+    /// Untitled-document counter, exactly as SOLIDWORKS names them (Part1,+    /// Part2, ...), so a test can assert on the title it will really get.+    untitled: u32,+    preferences: Map<String, Value>,+    /// The launcher has been invoked and SOLIDWORKS is coming up. See+    /// `launch_shortcut`.+    launching: Option<std::time::Instant>,+    /// Insertion-ordered, like the Python dict it replaces: closing the active+    /// doc falls back to the first remaining one.+    docs: Vec<MockDoc>,+    active: Option<String>,+    /// Custom properties as they were at the moment a document was written to+    /// disk, keyed by lowercased path. A COPY-mode save_as leaves the open+    /// document unpathed, so the FILE it produced has no open document to read+    /// properties from — which is exactly the situation a BOM is in when its+    /// components are files on disk rather than windows on screen.+    files: std::collections::BTreeMap<String, Map<String, Value>>,+}++const MOCK_VERSION: &str = "mock 33.0.0 (2025 SP0)";++/// The mock's preference table — the same NAMES the real backend exposes, so a+/// caller cannot discover a preference here that SOLIDWORKS would reject.+const MOCK_PREFERENCES: &[(&str, i32)] = &[("lengthUnitRaw", 53), ("unitSystemRaw", 48)];++fn prop(value: &str) -> Value {+    json!({"value": value, "resolved": value})+}++impl MockBackend {+    pub fn new() -> Self {+        Self {+            running: false,+            created: crate::comhost::created_store::load_session().1,+            created_session: crate::comhost::created_store::load_session().0,+            generation: 0,+            untitled: 0,+            preferences: Map::new(),+            docs: Vec::new(),+            active: None,+            files: std::collections::BTreeMap::new(),+            launching: None,+        }+    }++    fn find(&self, path: &str) -> Option<&MockDoc> {+        self.docs.iter().find(|d| d.path == path)+    }++    fn doc_info(&self, path: &str) -> Value {+        match self.find(path) {+            None => Value::Null,+            Some(d) => json!({+                "title": d.title,+                // Never saved -> no path. This is the ONE signal that separates+                // a scratch document from a real file, and both backends give it.+                "path": if d.saved { d.path.clone() } else { String::new() },+                "type": d.doc_type,+                "config": d.config,+                // SOLIDWORKS DOES NOT ALWAYS ANSWER THIS. `GetSaveFlag` is+                // unavailable on some documents and some editions, which is why+                // every caller of this field treats absent as DIRTY. A mock+                // that always answers a clean boolean cannot exercise that+                // rule — and it did not, so the "unanswerable question is not+                // permission" guard in swx_close_all_documents had no test.+                "dirty": if std::env::var("SWX_MOCK_DIRTY_UNKNOWN").as_deref() == Ok("1") {+                    Value::Null+                } else {+                    Value::Bool(d.dirty)+                },+            }),+        }+    }++    /// The target document: explicit `path` arg, else the active doc.+    /// The path SOLIDWORKS would REPORT for a document: empty until it is saved.+    /// The mock's internal key (`untitled:Part1`) is not a path and must never+    /// be matchable as one — treating it as one is what made every mock test+    /// pass while the first real unsaved document was unaddressable.+    fn reported_path(d: &MockDoc) -> &str {+        if d.saved {+            &d.path+        } else {+            ""+        }+    }++    /// The SAME resolution the real backend performs, including the part that+    /// broke live: a PATH matches only a document that actually has one, and a+    /// TITLE is resolved by walking the open documents.+    fn resolve(&self, args: &Value) -> Result<String, HostError> {+        if let Some(path) =+            args.get("path").and_then(|v| v.as_str()).filter(|s| !s.is_empty())+        {+            return match self.docs.iter().find(|d| Self::reported_path(d) == path) {+                Some(d) => Ok(d.path.clone()),+                None => Err(HostError::coded(+                    "document_not_open",+                    format!("document not open: {path} (swx_docs lists the open titles and paths)"),+                )),+            };+        }+        let title = args+            .get("docName")+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .or_else(|| args.get("name").and_then(|v| v.as_str()).filter(|s| !s.is_empty()));+        if let Some(title) = title {+            let hits: Vec<&MockDoc> = self.docs.iter().filter(|d| d.title == title).collect();+            return match hits.len() {+                1 => Ok(hits[0].path.clone()),+                0 => Err(HostError::coded(+                    "document_not_open",+                    format!("document not open: {title} (swx_docs lists the open titles and paths)"),+                )),+                n => Err(HostError::coded(+                    "ambiguous_target",+                    format!("{n} open documents are titled '{title}' — name the one you mean by path"),+                )),+            };+        }+        match self.active.clone() {+            Some(p) if self.find(&p).is_some() => Ok(p),+            _ => Err(HostError::coded(+                "no_target_document",+                "no active document (pass path or name, or swx_open one)",+            )),+        }+    }+++    /// THE HOST'S OWN VETO, mirroring `ComBackend::authorize`. It re-decides+    /// ownership from its OWN record and reads the process-level opt-in from the+    /// ENVIRONMENT, so a server that sent `allowUserWrites` it had no right to+    /// send is still refused.+    /// Remember a document THIS HOST created, keyed by its identity, and persist it.+    fn remember_created(&mut self, key: &str) {+        let (title, path) = match self.find(key) {+            Some(d) => (d.title.clone(), if d.saved { Some(d.path.clone()) } else { None }),+            None => return,+        };+        self.remember_created_parts(title, path);+    }++    /// The same, from the `{title, path}` a result carries — the form the+    /// dispatch loop applies to every command without knowing what it does.+    fn remember_created_parts(&mut self, title: String, path: Option<String>) {+        if title.is_empty() {+            return;+        }+        let session = Some(self.session());+        if self.created_session != session {+            self.created.clear();+            self.created_session = session;+        }+        // Evict by IDENTITY, not by title — see `ComBackend::remember_created`.+        match &path {+            Some(p) => self.created.retain(|(t, cp)| {+                !cp.as_deref().map(|q| crate::verbs::same_path(q, p)).unwrap_or(false)+                    && !(cp.is_none() && *t == title)+            }),+            None => self.created.retain(|(t, cp)| !(cp.is_none() && *t == title)),+        }+        self.created.push((title, path));+        crate::comhost::created_store::save_session(self.created_session, &self.created);+    }++    /// Does this host believe it created the document at `key`? Path where there+    /// is one, title otherwise — the same identity rule everywhere else.+    fn host_owns(&self, key: &str) -> bool {+        if self.created_session != Some(self.session()) {+            return false;+        }+        let Some(d) = self.find(key) else { return false };+        if d.saved {+            self.created+                .iter()+                .any(|(_, p)| p.as_deref().map(|q| crate::verbs::same_path(q, &d.path)).unwrap_or(false))+        } else {+            self.created.iter().any(|(t, p)| p.is_none() && *t == d.title)+        }+    }++    /// Which document a mutating command is aimed at, resolved as the command+    /// itself will resolve it.+    fn authorize_target(&self, cmd: &str, args: &Value) -> Option<String> {+        if cmd == "run_script" {+            if let Some(t) = args.get("targetDocument").and_then(|v| v.as_str()).filter(|s| !s.is_empty()) {+                return self.resolve(&json!({"docName": t})).ok();+            }+            if let Ok(ops) = crate::script::parse(&args.get("script").cloned().unwrap_or(Value::Null)) {+                if matches!(ops.first(), Some(crate::script::Op::NewPart | crate::script::Op::NewAssembly)) {+                    return None;+                }+            }+        }+        self.resolve(args).ok()+    }++    fn authorize(&self, args: &Value, what: &str, doc: Option<&str>, destination: Option<&str>) -> Result<(), HostError> {+        self.authorize_inner(args, what, doc, destination, false)+    }++    fn authorize_inner(&self, args: &Value, what: &str, doc: Option<&str>, destination: Option<&str>, always: bool) -> Result<(), HostError> {+        let clobbers = destination+            .map(|d| !d.is_empty() && std::path::Path::new(d).exists())+            .unwrap_or(false);+        let foreign = doc.map(|p| !self.host_owns(p)).unwrap_or(false);+        if !clobbers && !foreign && !always {+            return Ok(());+        }+        // THE FULL OPT-IN CHAIN, re-checked here from the SAME function the+        // server uses — env, plus allowUserWrites AND confirm AND a reason.+        //+        // This used to test `allowUserWrites` alone, which had two consequences,+        // both live-proven on 2026-09-03. It made the host's veto a WEAKER test+        // than the server's, so "two independent vetoes" was not true in the+        // direction that mattered; and because a `Grant` only carried that one+        // boolean, a verb that authorized a CLOSE and then sent the host a+        // payload without it was refused by the host even though the human had+        // authorized it in full. An escape hatch nobody can open is not a safety+        // property, it is a bug — Drew authorized closing his own documents and+        // the bridge told him no.+        let env_on = crate::writes::user_writes_enabled();+        let missing = crate::writes::missing_opt_in(args);+        if env_on && missing.is_empty() {+            return Ok(());+        }+        Err(HostError::detailed(+            format!(+                "the com host refuses to {what}: {}{}",+                if foreign { "this document was not created by this bridge" } else { "" },+                if clobbers { " the destination already exists" } else { "" }+            ),+            format!(+                "This is the com host's OWN check, not the server's — it keeps its own record of \+                 the documents it created and reads {} from the environment it was started with. \+                 The host applies the IDENTICAL opt-in test the server does. \+                 envOptIn={env_on} missing=[{}]",+                crate::writes::ENV_ALLOW,+                missing.join(", ")+            ),+        ))+    }++    /// SOLIDWORKS' process id, as this mock models it.+    ///+    /// It must NOT be derived from the com host's own pid: SOLIDWORKS is a+    /// separate application that OUTLIVES the host, and the host is killed and+    /// respawned by design. Keying the session to the host process made a+    /// respawned host see a different "SOLIDWORKS" and discard its own record —+    /// the very bug the persisted store exists to fix, reintroduced by the mock.+    /// So the session lives in a file, created on `start` and removed on `stop`,+    /// exactly as a real SOLIDWORKS process id does.+    fn session(&self) -> i64 {+        let p = crate::scratch::root().join("mock-solidworks-session");+        if let Ok(t) = std::fs::read_to_string(&p) {+            if let Ok(v) = t.trim().parse::<i64>() {+                return v;+            }+        }+        let v = 700_000 + self.generation * 1_000 + (std::process::id() as i64 % 1_000);+        if let Some(parent) = p.parent() {+            let _ = std::fs::create_dir_all(parent);+        }+        let _ = std::fs::write(&p, v.to_string());+        v+    }++    /// The SOLIDWORKS "process" went away: a new one gets a new id.+    fn end_session(&self) {+        let _ = std::fs::remove_file(crate::scratch::root().join("mock-solidworks-session"));+    }++    fn require_running(&self) -> Result<(), HostError> {+        if self.running {+            Ok(())+        } else {+            Err(HostError::msg(+                "SOLIDWORKS is not running (pass launch:true or call swx_start first)",+            ))+        }+    }++    fn require_assembly(&self, path: &str, what: &str) -> Result<(), HostError> {+        if self.find(path).map(|d| d.doc_type) == Some("assembly") {+            Ok(())+        } else {+            Err(HostError::msg(what))+        }+    }+}++impl Default for MockBackend {+    fn default() -> Self {+        Self::new()+    }+}++impl Backend for MockBackend {+    fn commands(&self) -> &'static [&'static str] {+        COMMANDS+    }++    fn register_created(&mut self, doc: &Value) {+        let title = doc.get("title").and_then(|t| t.as_str()).unwrap_or("").to_string();+        let path = doc+            .get("path")+            .and_then(|p| p.as_str())+            .filter(|s| !s.is_empty())+            .map(String::from);+        self.remember_created_parts(title, path);+    }++    /// The SAME deny-by-default veto the real backend applies. Modelled here+    /// because a mock that omits the security-relevant behaviour makes every+    /// test that covers it prove nothing — which is how `run_script`,+    /// `props_set`, `rebuild_check` and `eval` shipped with no host-side guard+    /// while the suite was green.+    fn authorize_command(&mut self, cmd: &str, args: &Value) -> Result<(), HostError> {+        if cmd == "eval" {+            let expr = args.get("expr").and_then(|v| v.as_str()).unwrap_or("");+            if let Some((member, why)) = super::expr::refused_member(expr) {+                return Err(HostError::detailed(+                    format!("the com host refuses to evaluate '{member}': {why}"),+                    "This is the host's own re-check of the read allowlist, not the server's."+                        .to_string(),+                ));+            }+            return Ok(());+        }+        if matches!(cmd, "stop" | "close_all_documents") {+            return self.authorize_inner(args, "quit or close the user's SOLIDWORKS session", None, None, true);+        }+        // An EXPORT (and a save_as in Copy mode) writes a NEW file and leaves+        // the document alone, so reading the user's part to produce one is not a+        // write to their data — only the destination has to be clear. Applying+        // the ownership rule here as well would refuse the single most useful+        // thing this bridge does.+        let copy_only = cmd == "export"+            || (cmd == "save_as" && args.get("copy").and_then(|v| v.as_bool()).unwrap_or(false));+        if cmd == "open" {+            let path = args.get("path").and_then(|v| v.as_str()).unwrap_or("");+            let ours = self+                .created+                .iter()+                .any(|(_, p)| p.as_deref().map(|q| crate::verbs::same_path(q, path)).unwrap_or(false));+            if !ours {+                return self.authorize_inner(args, "open this document FOR WRITING", None, None, true);+            }+            return Ok(());+        }+        let doc: Option<String> = if copy_only { None } else { self.authorize_target(cmd, args) };+        let destination = args+            .get("out")+            .or_else(|| args.get("outputPath"))+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .map(|s| s.to_string());+        self.authorize(args, cmd, doc.as_deref(), destination.as_deref())+    }++    fn call(&mut self, cmd: &str, args: &Value) -> Result<Value, HostError> {+        match cmd {+            "ping" => Ok(json!({"pong": true, "pid": std::process::id()})),++            "status" => Ok(json!({+                "running": self.running,+                "version": if self.running { Value::from(MOCK_VERSION) } else { Value::Null },+                "openDocs": self.docs.len(),+                "attached": self.running,+            })),++            "start" => {+                // ATTACH vs LAUNCH, modelled faithfully: with launch:false this+                // only succeeds if the app is already up. That distinction is+                // load-bearing on SOLIDWORKS Connected, where launching is+                // impossible and attaching is the only path — so the mock has to+                // have it, or the suite would prove nothing about swx_start.+                let launch = args.get("launch").and_then(|v| v.as_bool()).unwrap_or(false);+                // A launcher invocation that is still coming up becomes+                // attachable once it has had its time — so an ATTACH (launch:+                // false) starts failing and then starts succeeding, exactly as+                // it does while a Connected edition boots.+                if let Some(since) = self.launching {+                    let after = std::env::var("SWX_MOCK_SHORTCUT_ATTACHES_AFTER_MS")+                        .ok()+                        .and_then(|v| v.parse::<u64>().ok());+                    if let Some(ms) = after {+                        if since.elapsed() >= std::time::Duration::from_millis(ms) {+                            self.running = true;+                            self.launching = None;+                        }+                    }+                }+                if !self.running && !launch {+                    return Err(HostError::msg(+                        "SOLIDWORKS is not running (start it, then retry — swx_start reports \+                         whether this edition can be launched programmatically at all)",+                    ));+                }+                // Test-only knob: make the "cold start" take real time, so the+                // suite can prove swx_progress still answers WHILE a slow verb+                // holds the com host. Never set in production.+                if let Ok(ms) = std::env::var("SWX_MOCK_SLOW_MS") {+                    if let Ok(ms) = ms.parse::<u64>() {+                        std::thread::sleep(std::time::Duration::from_millis(ms));+                    }+                }+                let was_launched = !self.running;+                self.running = true;+                Ok(json!({+                    "started": true,+                    "version": MOCK_VERSION,+                    "wasLaunched": was_launched,+                    "mainHwnd": 4242,+                    "processId": self.session(),+                }))+            }++            // THE SANCTIONED LAUNCH, modelled in both its branches.+            //+            // The mock's job here is to be faithful to the CONSTRAINT, not the+            // mechanism: invoking the shortcut is fire-and-forget, and whether+            // SOLIDWORKS has become COM-attachable by the time the call returns+            // is genuinely not knowable — a Connected cold start runs one to+            // three minutes. So the default branch is "invoked, NOT yet+            // attached", which is the branch a real machine almost always takes+            // and the one the polling logic exists for. `SWX_MOCK_SHORTCUT_ATTACHES=1`+            // models the fast machine.+            "launch_shortcut" => {+                let shortcut =+                    args.get("shortcut").and_then(|v| v.as_str()).unwrap_or("").to_string();+                if shortcut.is_empty() {+                    return Err(HostError::coded(+                        "host_app_launch_blocked",+                        "no shortcut was given to invoke",+                    ));+                }+                if self.running {+                    return Ok(json!({"invoked": false, "attached": true, "alreadyRunning": true}));+                }+                let attaches = std::env::var("SWX_MOCK_SHORTCUT_ATTACHES").as_deref() == Ok("1");+                if attaches {+                    self.running = true;+                } else {+                    // COMING UP. The launcher was invoked and SOLIDWORKS will+                    // appear after a while — which is the real machine's+                    // behaviour and the only shape that exercises the server's+                    // attach POLL. Without this the mock could only model+                    // "instantly up" or "never up", and the polling loop — the+                    // part that exists because a Connected cold start runs+                    // minutes — would have no test at all.+                    self.launching = Some(std::time::Instant::now());+                }+                Ok(json!({+                    "invoked": true,+                    "attached": attaches,+                    "shortcut": shortcut,+                    "version": if attaches { Value::from(MOCK_VERSION) } else { Value::Null },+                }))+            }++            "stop" => {+                if !self.running {+                    return Ok(json!({"stopped": false, "reason": "not running"}));+                }+                self.running = false;+                self.docs.clear();+                self.active = None;+                // A restart is a NEW session: new process id, and the untitled+                // numbering starts over at Part1 — just like the real thing.+                self.generation += 1;+                self.untitled = 0;+                self.end_session();+                crate::comhost::created_store::clear();+                Ok(json!({"stopped": true, "stillRunning": false, "rpcDisconnect": Value::Null}))+            }++            "docs" => {+                self.require_running()?;+                let docs: Vec<Value> =+                    self.docs.iter().map(|d| self.doc_info(&d.path)).collect();+                let active = match &self.active {+                    Some(p) => self.doc_info(p),+                    None => Value::Null,+                };+                Ok(json!({"docs": docs, "active": active}))+            }++            "open" => {+                // Mirror the real backend: opening only starts the app when the+                // SERVER said it may. Without this the mock would make swx_open+                // look like a launch road that always works.+                let launch = args.get("launch").and_then(|v| v.as_bool()).unwrap_or(false);+                if !self.running && !launch {+                    return Err(HostError::msg(+                        "SOLIDWORKS is not running (start it, then retry — swx_start reports \+                         whether this edition can be launched programmatically at all)",+                    ));+                }+                self.running = true;+                let path = args+                    .get("path")+                    .and_then(|v| v.as_str())+                    .ok_or_else(|| HostError::msg("path is required"))?+                    .to_string();+                let doc_type = doc_type_of(&path).ok_or_else(|| {+                    let ext = match path.rfind('.') {+                        Some(i) => path[i..].to_ascii_lowercase(),+                        None => String::new(),+                    };+                    HostError::msg(format!(+                        "not a SOLIDWORKS document: {ext} (want .sldprt/.sldasm/.slddrw)"+                    ))+                })?;+                let config = args+                    .get("configuration")+                    .and_then(|v| v.as_str())+                    .filter(|s| !s.is_empty())+                    .unwrap_or("Default")+                    .to_string();+                // ALREADY OPEN? SOLIDWORKS hands back the document it already+                // has — it does not open a second copy. The mock used to+                // replace the entry, which quietly produced a DUPLICATE whenever+                // the caller's path differed from the reported one by case, and+                // that artifact hid an ownership bug in the test suite.+                if let Some(existing) =+                    self.docs.iter().find(|d| d.saved && crate::verbs::same_path(&d.path, &path))+                {+                    let key = existing.path.clone();+                    self.active = Some(key.clone());+                    return Ok(json!({+                        "opened": self.doc_info(&key),+                        "readOnly": args.get("readOnly").and_then(|v| v.as_bool()).unwrap_or(true),+                        "errors": 0,+                        "warnings": 0,+                        "alreadyOpen": true,+                    }));+                }+                // The mock treats any path as existing, so tests need no fixtures.+                self.docs.retain(|d| d.path != path);+                let mut doc = MockDoc::opened(path.clone(), doc_type, config);+                doc.props.insert("PartNo".into(), prop("MOCK-001"));+                doc.dimensions.insert("D1@Boss-Extrude1".into(), json!(0.02));+                doc.bodies.push(mock_body("Boss-Extrude1", 50.0, 30.0, 20.0));+                self.docs.push(doc);+                self.active = Some(path.clone());+                Ok(json!({+                    "opened": self.doc_info(&path),+                    "readOnly": args.get("readOnly").and_then(|v| v.as_bool()).unwrap_or(true),+                    "errors": 0,+                    "warnings": 0,+                }))+            }++            "close_doc" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                let title = base_name(&path).to_string();+                self.docs.retain(|d| d.path != path);+                if self.active.as_deref() == Some(path.as_str()) {+                    self.active = self.docs.first().map(|d| d.path.clone());+                }+                // A closed document is no longer ours — the server prunes its+                // registry the same way.+                self.created.retain(|(t, p)| *t != title && p.as_deref() != Some(path.as_str()));+                crate::comhost::created_store::save_session(self.created_session, &self.created);+                Ok(json!({"closed": title}))+            }++            "save" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                if let Some(d) = self.docs.iter_mut().find(|d| d.path == path) {+                    d.dirty = false;+                }+                Ok(json!({+                    "saved": true, "errors": 0, "warnings": 0, "doc": self.doc_info(&path)+                }))+            }++            "export" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                let out = args+                    .get("out")+                    .and_then(|v| v.as_str())+                    .filter(|s| !s.is_empty())+                    .ok_or_else(|| HostError::msg("out (destination path) is required"))?;+                // SaveAs3 returns swFileSaveError_e, and on a live install it+                // returns 256 for a format the document type cannot produce.+                // The mock reproduces that, because "export reported failure+                // while writing good bytes" was a real shipped bug and it had+                // NO mock coverage — the fake always succeeded.+                // Path::extension, not rsplit('.') — a destination with no+                // extension at all would otherwise "match" the whole path.+                let ext = std::path::Path::new(out)+                    .extension()+                    .map(|e| e.to_string_lossy().to_ascii_lowercase())+                    .unwrap_or_default();+                let doc_type = self.find(&path).map(|d| d.doc_type).unwrap_or("part");+                if doc_type == "part" && matches!(ext.as_str(), "obj" | "dxf" | "dwg" | "u3d") {+                    return Err(HostError::msg(format!(+                        "SOLIDWORKS refused to write {out}: format not supported for this \+                         document type (swFileSaveError_e 256)"+                    )));+                }+                let parent = std::path::Path::new(out).parent();+                if let Some(p) = parent {+                    if !p.as_os_str().is_empty() {+                        std::fs::create_dir_all(p)+                            .map_err(|e| HostError::msg(format!("cannot create {p:?}: {e}")))?;+                    }+                }+                let body = format!("mock export of {path}\n");+                std::fs::write(out, &body)+                    .map_err(|e| HostError::msg(format!("cannot write {out}: {e}")))?;+                // Test-only fault injection (never set in production): make the+                // export RENAME the document, which is what SaveAs3 does without+                // the Copy flag. It is how the suite proves the bridge REPORTS a+                // rename rather than silently passing it on.+                let renamed = std::env::var("SWX_MOCK_RENAME_ON_EXPORT").as_deref() == Ok("1");+                if renamed {+                    let title = base_name(out).to_string();+                    if let Some(d) = self.docs.iter_mut().find(|d| d.path == path) {+                        d.title = title;+                    }+                }+                Ok(json!({+                    "exported": out,+                    "bytes": body.len(),+                    "fileSizeKB": (body.len() as f64 / 1024.0).round() as u64,+                    "saveErrorCode": 0,+                    "documentRenamed": renamed,+                    "doc": self.doc_info(&path),+                }))+            }++            "props_get" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                let props = self.find(&path).map(|d| d.props.clone()).unwrap_or_default();+                Ok(json!({+                    "doc": self.doc_info(&path),+                    "configuration": args.get("configuration").cloned().unwrap_or_else(|| Value::from("")),+                    "properties": Value::Object(props),+                    "configurations": ["Default"],+                }))+            }++            "props_set" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                let incoming = args+                    .get("properties")+                    .and_then(|v| v.as_object())+                    .cloned()+                    .unwrap_or_default();+                let mut set = Map::new();+                if let Some(d) = self.docs.iter_mut().find(|d| d.path == path) {+                    for (k, v) in incoming {+                        let s = match v {+                            Value::String(s) => s,+                            other => other.to_string(),+                        };+                        d.props.insert(k.clone(), prop(&s));+                        set.insert(k, Value::from(1));+                    }+                    d.dirty = true;+                }+                Ok(json!({"doc": self.doc_info(&path), "set": Value::Object(set)}))+            }++            "mass_properties" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                Ok(json!({+                    "doc": self.doc_info(&path),+                    "massKg": 0.4173,+                    "volumeM3": 5.31e-05,+                    "surfaceAreaM2": 0.0234,+                    "density": 7860.0,+                    "centerOfMass": [0.012, 0.0, 0.0345],+                    "boundingBox": [-0.05, -0.02, 0.0, 0.05, 0.02, 0.09],+                }))+            }++            "bom" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                self.require_assembly(+                    &path,+                    "BOM needs an assembly (.sldasm) as the target document",+                )?;+                // COMPONENTS THE CALLER INSERTED WIN. Without this the mock's+                // BOM was a canned three rows whatever the assembly contained,+                // so `add_component` could not be tested through the one verb+                // that proves it did anything.+                let real: Vec<(String, String)> =+                    self.docs.iter().find(|d| d.path == path).map(|d| d.components.clone()).unwrap_or_default();+                if !real.is_empty() {+                    let mut keys: Vec<String> = Vec::new();+                    let mut rows: Vec<Map<String, Value>> = Vec::new();+                    for (file, configuration) in &real {+                        let configuration =+                            if configuration.is_empty() { "Default" } else { configuration.as_str() };+                        let key = format!("{file}|{configuration}");+                        if let Some(i) = keys.iter().position(|k| *k == key) {+                            let q = rows[i].get("quantity").and_then(|v| v.as_i64()).unwrap_or(0) + 1;+                            rows[i].insert("quantity".into(), Value::from(q));+                            continue;+                        }+                        // The {value, resolved} shape the CSV writer reads —+                        // the same one the canned rows and the live backend use.+                        let source = self+                            .find(file)+                            .map(|d| d.props.clone())+                            .or_else(|| self.files.get(&file.to_lowercase()).cloned())+                            .unwrap_or_default();+                        // `props` is ALREADY stored in the {value, resolved}+                        // shape the CSV writer reads — the same shape the live+                        // backend's custom_props returns.+                        let props = Value::Object(source);+                        let mut row = Map::new();+                        row.insert("file".into(), Value::from(file.clone()));+                        row.insert("name".into(), Value::from(file_stem(file).to_string()));+                        row.insert("configuration".into(), Value::from(configuration));+                        row.insert("quantity".into(), Value::from(1));+                        row.insert("suppressedInstances".into(), Value::from(0));+                        row.insert("properties".into(), props);+                        keys.push(key);+                        rows.push(row);+                    }+                    let rows: Vec<Value> = rows.into_iter().map(Value::Object).collect();+                    return Ok(json!({+                        "doc": self.doc_info(&path),+                        "topLevelOnly": args.get("topLevelOnly").and_then(|v| v.as_bool()).unwrap_or(false),+                        "rowCount": rows.len(),+                        "rows": rows,+                    }));+                }+                let dir = dir_name(&path);+                let base = if dir.is_empty() { "C:\\mock" } else { dir };+                let file = |n: &str| format!("{base}\\{n}");+                let rows = json!([+                    {+                        "file": file("bracket.sldprt"), "name": "bracket",+                        "configuration": "Default", "quantity": 2, "suppressedInstances": 0,+                        "properties": {+                            "PartNo": prop("BRK-100"),+                            "Material": prop("6061-T6"),+                        },+                    },+                    {+                        "file": file("shaft.sldprt"), "name": "shaft",+                        "configuration": "Long", "quantity": 1, "suppressedInstances": 0,+                        "properties": {"PartNo": prop("SHF-220")},+                    },+                    {+                        "file": file("m4-screw.sldprt"), "name": "m4-screw",+                        "configuration": "Default", "quantity": 8, "suppressedInstances": 0,+                        "properties": {},+                    },+                ]);+                Ok(json!({+                    "doc": self.doc_info(&path),+                    "topLevelOnly": args.get("topLevelOnly").and_then(|v| v.as_bool()).unwrap_or(false),+                    "rowCount": 3,+                    "rows": rows,+                }))+            }++            "interference" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                self.require_assembly(+                    &path,+                    "interference detection needs an assembly (.sldasm)",+                )?;+                Ok(json!({+                    "doc": self.doc_info(&path),+                    "count": 1,+                    "interferences": [+                        {"components": ["bracket-1", "shaft-1"], "volumeM3": 2.1e-08}+                    ],+                }))+            }++            "rebuild_check" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                Ok(json!({+                    "doc": self.doc_info(&path),+                    "rebuilt": true,+                    "featureErrors": [],+                    "errorCount": 0,+                    "unreadableFeatures": 0,+                    "whatsWrongCount": 0,+                    "featuresWalked": 4,+                }))+            }++            "pack_and_go" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                let out = args+                    .get("out")+                    .and_then(|v| v.as_str())+                    .filter(|s| !s.is_empty())+                    .ok_or_else(|| HostError::msg("out (destination directory) is required"))?;+                std::fs::create_dir_all(out)+                    .map_err(|e| HostError::msg(format!("cannot create {out}: {e}")))?;+                let dest = std::path::Path::new(out).join(base_name(&path));+                std::fs::write(&dest, "mock pack-and-go copy\n")+                    .map_err(|e| HostError::msg(format!("cannot write {dest:?}: {e}")))?;+                Ok(json!({+                    "doc": self.doc_info(&path),+                    "out": out,+                    "files": [dest.to_string_lossy()],+                    "statuses": [0],+                }))+            }++            "eval" => {+                // Run the SAME parser the real backend uses, so the grammar is+                // actually exercised over the wire (an unparseable expression is+                // an error in mock mode too, not a cheerful echo). This is what+                // keeps the e2e "com_eval runs" test from proving nothing.+                let expr = args.get("expr").and_then(|v| v.as_str()).unwrap_or("");+                let (root, segments) = super::expr::parse_chain(expr)?;+                let chain: Vec<String> = segments.iter().map(|s| s.name.clone()).collect();+                Ok(json!({+                    "result": format!("mock eval of ${root}.{}", chain.join(".")),+                    "value": Value::Null,+                    "root": root,+                    "chain": chain,+                    "expr": expr,+                }))+            }+++            // ── v0.3 ────────────────────────────────────────────────────────+            "new_document" => {+                self.running = true;+                let kind = args.get("type").and_then(|v| v.as_str()).unwrap_or("part");+                // The REAL untitled names SOLIDWORKS uses. A mock that invents+                // its own ("Assembly1") lets a test assert on a title the live+                // application will never produce.+                let (doc_type, prefix) = match kind.trim().to_lowercase().as_str() {+                    "part" | "prt" | "sldprt" => ("part", "Part"),+                    "assembly" | "asm" | "sldasm" => ("assembly", "Assem"),+                    "drawing" | "drw" | "slddrw" => ("drawing", "Draw"),+                    other => {+                        return Err(HostError::msg(format!(+                            "unknown document type '{other}' — use part, assembly or drawing"+                        )))+                    }+                };+                self.untitled += 1;+                let title = format!("{prefix}{}", self.untitled);+                let key = format!("untitled:{title}");+                let template = args+                    .get("template")+                    .and_then(|v| v.as_str())+                    .map(|s| s.to_string())+                    .unwrap_or_else(|| format!("C:\\ProgramData\\SolidWorks\\templates\\{prefix}.prtdot"));+                let mut doc = MockDoc::opened(key.clone(), doc_type, "Default".into());+                doc.title = title;+                doc.saved = false;+                self.docs.push(doc);+                self.active = Some(key.clone());+                Ok(json!({"created": self.doc_info(&key), "template": template, "type": kind}))+            }++            "activate_document" => {+                self.require_running()?;+                let name = args+                    .get("name")+                    .or_else(|| args.get("path"))+                    .and_then(|v| v.as_str())+                    .filter(|s| !s.is_empty())+                    .ok_or_else(|| HostError::msg("name (the document title, as swx_docs reports it) is required"))?;+                let key = self+                    .docs+                    .iter()+                    .find(|d| d.title == name || d.path == name)+                    .map(|d| d.path.clone())+                    .ok_or_else(|| {+                        HostError::msg(format!(+                            "SOLIDWORKS could not activate '{name}' (errors=1) — swx_docs lists \+                             the titles that are actually open"+                        ))+                    })?;+                self.active = Some(key.clone());+                Ok(json!({"activeDocument": self.doc_info(&key), "errors": 0}))+            }++            "close_all_documents" => {+                self.require_running()?;+                let close_unsaved =+                    args.get("closeUnsaved").and_then(|v| v.as_bool()).unwrap_or(false);+                let before: Vec<Value> =+                    self.docs.iter().map(|d| self.doc_info(&d.path)).collect();+                let would_prompt: Vec<Value> =+                    self.docs.iter().filter(|d| d.dirty).map(|d| self.doc_info(&d.path)).collect();+                if close_unsaved {+                    self.docs.clear();+                } else {+                    self.docs.retain(|d| d.dirty);+                }+                self.active = self.docs.first().map(|d| d.path.clone());+                let remaining: Vec<Value> =+                    self.docs.iter().map(|d| self.doc_info(&d.path)).collect();+                Ok(json!({+                    "closedAll": true,+                    "closed": before,+                    "remaining": remaining,+                    "wouldPrompt": would_prompt,+                    "closeUnsaved": close_unsaved,+                }))+            }++            "document_info" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                let info = self.doc_info(&path);+                let d = self.find(&path).expect("resolved");+                Ok(json!({+                    "name": d.title,+                    "productType": d.doc_type,+                    "path": info.get("path").cloned().unwrap_or(Value::Null),+                    "isSaved": d.saved,+                    "dirty": d.dirty,+                    "configuration": d.config,+                    "configurations": ["Default"],+                    "customPropertyCount": d.props.len(),+                    "needsRebuild": 0,+                    "doc": info,+                }))+            }++            "design_info" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                let info = self.doc_info(&path);+                let d = self.find(&path).expect("resolved");+                Ok(json!({+                    "doc": info,+                    "features": 4,+                    "sketches": if d.bodies.is_empty() { 0 } else { 1 },+                    "bodies": d.bodies.len(),+                    "components": if d.doc_type == "assembly" { 3 } else { 0 },+                    "featureErrors": 0,+                    "configurations": ["Default"],+                    "material": d.material.as_ref().map(|m| json!({"name": m, "database": "SOLIDWORKS Materials.sldmat"})).unwrap_or(Value::Null),+                    "units": {"linearRaw": 0, "linear": "mm", "systemRaw": 2, "note": "mock"},+                    "needsRebuild": 0,+                }))+            }++            "get_parameters" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                let info = self.doc_info(&path);+                let d = self.find(&path).expect("resolved");+                let params: Vec<Value> = d+                    .dimensions+                    .iter()+                    .map(|(name, v)| {+                        let m = v.as_f64().unwrap_or(0.0);+                        json!({+                            "name": name,+                            "expression": Value::Null,+                            "value": m,+                            "valueMm": (m * 1000.0 * 1000.0).round() / 1000.0,+                            "unit": "m",+                            "source": "dimension",+                        })+                    })+                    .collect();+                Ok(json!({+                    "doc": info,+                    "parameters": params,+                    "count": params.len(),+                    "featuresWalked": 4,+                    "truncated": false,+                }))+            }++            "set_parameter" => {+                self.require_running()?;+                let name = args+                    .get("name")+                    .and_then(|v| v.as_str())+                    .filter(|s| !s.is_empty())+                    .ok_or_else(|| HostError::msg("name is required, e.g. \"D1@Boss-Extrude1\""))?+                    .to_string();+                let (value, unit) = match (+                    args.get("valueMm").and_then(|v| v.as_f64()),+                    args.get("value").and_then(|v| v.as_f64()),+                ) {+                    (Some(mm), _) => (mm * 0.001, "mm"),+                    (None, Some(m)) => (m, "m"),+                    _ => return Err(HostError::msg("value (metres) or valueMm (millimetres) is required")),+                };+                if !value.is_finite() {+                    return Err(HostError::msg("value must be a finite number"));+                }+                // `name` here is the DIMENSION, not the document. The document+                // comes from the server's authorized `docName`/`path`.+                let path = self.resolve(&json!({+                    "docName": args.get("docName").cloned(),+                    "path": args.get("path").cloned(),+                }))?;+                let before = self+                    .find(&path)+                    .and_then(|d| d.dimensions.get(&name).and_then(|v| v.as_f64()));+                if before.is_none() {+                    return Err(HostError::msg(format!(+                        "no dimension named '{name}' — swx_get_parameters lists what this \+                         document has (dimension names look like D1@Boss-Extrude1)"+                    )));+                }+                if let Some(d) = self.docs.iter_mut().find(|d| d.path == path) {+                    d.dimensions.insert(name.clone(), json!(value));+                    d.dirty = true;+                }+                Ok(json!({+                    "doc": self.doc_info(&path),+                    "name": name,+                    "requested": value,+                    "unitGiven": unit,+                    "before": before,+                    "value": value,+                    "valueMm": (value * 1000.0 * 1000.0).round() / 1000.0,+                    "rebuilt": true,+                }))+            }++            "inspect_bodies" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                if self.find(&path).map(|d| d.doc_type) != Some("part") {+                    return Err(HostError::msg(+                        "inspect_bodies needs a part (.sldprt); for an assembly use swx_bom or \+                         swx_mass_properties",+                    ));+                }+                let info = self.doc_info(&path);+                let filter = args.get("nameContains").and_then(|v| v.as_str()).unwrap_or("").to_lowercase();+                let bodies: Vec<Value> = self+                    .find(&path)+                    .map(|d| d.bodies.clone())+                    .unwrap_or_default()+                    .into_iter()+                    .filter(|b| {+                        filter.is_empty()+                            || b.get("name")+                                .and_then(|n| n.as_str())+                                .map(|n| n.to_lowercase().contains(&filter))+                                .unwrap_or(false)+                    })+                    .collect();+                Ok(json!({+                    "documentName": info.get("title").cloned().unwrap_or(Value::Null),+                    "doc": info,+                    "units": "mm",+                    "bodyCount": bodies.len(),+                    "bodies": bodies,+                }))+            }++            "import" => {+                self.running = true;+                let path = args+                    .get("filePath")+                    .or_else(|| args.get("path"))+                    .and_then(|v| v.as_str())+                    .filter(|s| !s.is_empty())+                    .ok_or_else(|| HostError::msg("filePath is required"))?+                    .to_string();+                self.untitled += 1;+                // SOLIDWORKS names an imported document after the file's STEM+                // with a PART extension: importing `smoke.step` yields a+                // document titled `smoke.SLDPRT`. The mock used the bare stem,+                // so it could not express the title collision the live run hit+                // when the suite imported a STEP beside its own saved part.+                let title = format!("{}.SLDPRT", file_stem(&path));+                let key = format!("untitled:{title}");+                let mut doc = MockDoc::opened(key.clone(), "part", "Default".into());+                doc.title = title;+                doc.saved = false;+                doc.bodies.push(mock_body("Imported1", 50.0, 30.0, 20.0));+                self.docs.push(doc);+                self.active = Some(key.clone());+                Ok(json!({"imported": self.doc_info(&key), "via": "LoadFile4", "errors": 0}))+            }++            "save_as" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                let out = args+                    .get("outputPath")+                    .or_else(|| args.get("out"))+                    .and_then(|v| v.as_str())+                    .filter(|s| !s.is_empty())+                    .ok_or_else(|| HostError::msg("outputPath is required"))?+                    .to_string();+                let copy = args.get("copy").and_then(|v| v.as_bool()).unwrap_or(false);+                if let Some(p) = std::path::Path::new(&out).parent() {+                    if !p.as_os_str().is_empty() {+                        let _ = std::fs::create_dir_all(p);+                    }+                }+                std::fs::write(&out, "mock save-as\n")+                    .map_err(|e| HostError::msg(format!("cannot write {out}: {e}")))?;+                // Remember what the FILE carries. A copy-mode save leaves the+                // document unpathed, so this is the only record of the+                // properties that went to disk — and a BOM reads files.+                if let Some(d) = self.find(&path) {+                    self.files.insert(out.to_lowercase(), d.props.clone());+                }+                let bytes = std::fs::metadata(&out).map(|m| m.len()).ok();+                // SOLIDWORKS UPPERCASES the extension of the path it reports:+                // ask it to save `smoke.sldprt` and `GetPathName` comes back+                // `smoke.SLDPRT`. The mock did not, so an exact string compare+                // between the requested and reported paths looked correct here+                // and disowned the bridge's own document on the real machine.+                let out = match out.rsplit_once('.') {+                    Some((stem, ext)) if !ext.is_empty() && !ext.contains(['/', '\\']) => {+                        format!("{stem}.{}", ext.to_uppercase())+                    }+                    _ => out.clone(),+                };+                if !copy {+                    // A real save-as RETITLES the open document; copy mode does not.+                    if let Some(d) = self.docs.iter_mut().find(|d| d.path == path) {+                        d.title = base_name(&out).to_string();+                        d.saved = true;+                        d.dirty = false;+                    }+                    let old = path.clone();+                    if let Some(d) = self.docs.iter_mut().find(|d| d.path == old) {+                        d.path = out.clone();+                    }+                    if self.active.as_deref() == Some(old.as_str()) {+                        self.active = Some(out.clone());+                    }+                    // Ownership follows the document through the rename.+                    self.created.retain(|(_, p)| {+                        !p.as_deref().map(|q| crate::verbs::same_path(q, &old)).unwrap_or(false)+                    });+                    self.remember_created(&out);+                    return Ok(json!({+                        "savedAs": out, "copy": copy, "bytes": bytes, "doc": self.doc_info(&out)+                    }));+                }+                Ok(json!({"savedAs": out, "copy": copy, "bytes": bytes, "doc": self.doc_info(&path)}))+            }++            "show" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                self.active = Some(path.clone());+                let info = self.doc_info(&path);+                Ok(json!({+                    "document": info.get("title").cloned().unwrap_or(Value::Null),+                    "doc": info,+                    "activated": args.get("activate").and_then(|v| v.as_bool()).unwrap_or(true),+                    "zoomedToFit": true,+                    "activateErrors": 0,+                }))+            }++            "app_state" => {+                let docs: Vec<Value> = self.docs.iter().map(|d| self.doc_info(&d.path)).collect();+                let active = self.active.as_ref().map(|p| self.doc_info(p));+                Ok(json!({+                    "running": self.running,+                    "version": if self.running { Value::from(MOCK_VERSION) } else { Value::Null },+                    "activeDocument": active.clone().map(|a| a.get("title").cloned().unwrap_or(Value::Null)).unwrap_or(Value::Null),+                    "activeDoc": active,+                    "documents": docs,+                    "documentCount": self.docs.len(),+                    "unsavedDocuments": self.docs.iter().filter(|d| d.dirty).count(),+                    "workspace": self+                        .active+                        .as_ref()+                        .and_then(|p| self.find(p))+                        .map(|d| d.doc_type)+                        .unwrap_or("none"),+                    "busy": false,+                    "visible": self.running,+                    "processId": self.session(),+                    "mainHwnd": if self.running { json!(4242) } else { Value::Null },+                }))+            }++            "check_recovery" => {+                self.require_running()?;+                Ok(json!({+                    "openDocuments": self.docs.len(),+                    "comApiHasRecoveryCheck": false,+                    "note": "SOLIDWORKS exposes no COM member for the Document Recovery pane; \+                             the server pairs this with the window census, which is where a \+                             recovery dialog actually shows up.",+                }))+            }++            "cloud_status" => {+                self.require_running()?;+                Ok(json!({+                    "connected": Value::Null,+                    "comApiExposesCloud": false,+                    "probedMembers": {+                        "IsPLMConnected": false,+                        "GetPLMConnection": false,+                        "GetSearchFolders": false,+                        "EnumDocuments2": false,+                    },+                    "licenseType": 8,+                    "version": MOCK_VERSION,+                }))+            }++            // The mock is faithful to the CONSTRAINTS, not the VBA: it cannot+            // run a macro, so it models what SOLIDWORKS reports about one. The+            // distinctions that matter to a caller are all here — a missing+            // file, a module/procedure that is not in the project, and a macro+            // that compiles and runs — because `runError` is the entire content+            // of a failed run and a mock that always answered 0 would make+            // every test of that meaningless.+            "run_macro" => {+                self.require_running()?;+                let path = args.get("path").and_then(|v| v.as_str()).unwrap_or("");+                let module = args.get("module").and_then(|v| v.as_str()).unwrap_or("main");+                let procedure =+                    args.get("procedure").and_then(|v| v.as_str()).unwrap_or("main");+                let ext = path.rsplit('.').next().unwrap_or("").to_lowercase();+                if !matches!(ext.as_str(), "swp" | "swb" | "dll") {+                    return Err(HostError::coded(+                        "macro_not_a_macro",+                        format!(+                            "not a SOLIDWORKS macro: .{ext} (want .swp, .swb or .dll)"+                        ),+                    ));+                }+                // A macro whose module or procedure is not in the project is+                // swRunMacroError 1 — a FALSE return with the reason only in+                // the out parameter, which is the shape most easily got wrong.+                let known = module.eq_ignore_ascii_case("main")+                    && (procedure.eq_ignore_ascii_case("main")+                        || procedure.eq_ignore_ascii_case("adomHello"));+                let run_error = if known { 0 } else { 1 };+                Ok(json!({+                    "ran": run_error == 0,+                    "path": path,+                    "module": module,+                    "procedure": procedure,+                    "runError": run_error,+                    "runErrorText": if run_error == 0 {+                        "ok"+                    } else {+                        "the macro or its module/procedure could not be found"+                    },+                    "unloadedAfterRun": true,+                    "provenLive": false,+                }))+            }++            "get_preferences" => {+                self.require_running()?;+                let mut current = Map::new();+                for (name, id) in MOCK_PREFERENCES {+                    let value = self+                        .preferences+                        .get(*name)+                        .and_then(|v| v.as_i64())+                        .unwrap_or(0);+                    current.insert(+                        (*name).to_string(),+                        json!({"id": id, "value": value, "scope": "document"}),+                    );+                }+                current.insert("lengthUnit".into(), json!("mm"));+                Ok(json!({+                    "current": Value::Object(current),+                    "documentScoped": !self.docs.is_empty(),+                    "app": {"visible": self.running, "licenseType": 8, "version": MOCK_VERSION},+                }))+            }++            "set_preference" => {+                self.require_running()?;+                let name = args+                    .get("name")+                    .and_then(|v| v.as_str())+                    .ok_or_else(|| HostError::msg("name is required"))?+                    .to_string();+                let id = MOCK_PREFERENCES+                    .iter()+                    .find(|(n, _)| *n == name)+                    .map(|(_, id)| *id)+                    .ok_or_else(|| {+                        HostError::msg(format!(+                            "unknown preference '{name}' — this bridge only exposes preferences \+                             it can round-trip: {}",+                            MOCK_PREFERENCES.iter().map(|(n, _)| *n).collect::<Vec<_>>().join(", ")+                        ))+                    })?;+                let value = args+                    .get("value")+                    .and_then(|v| v.as_i64())+                    .ok_or_else(|| HostError::msg("value (an integer) is required"))?;+                let before = self.preferences.get(&name).and_then(|v| v.as_i64()).unwrap_or(0);+                self.preferences.insert(name.clone(), json!(value));+                Ok(json!({+                    "applied": {name.clone(): value},+                    "name": name,+                    "id": id,+                    "requested": value,+                    "before": before,+                    "value": value,+                    "verified": true,+                }))+            }++            "add_component" => {+                self.require_running()?;+                let path = self.resolve(args)?;+                self.require_assembly(+                    &path,+                    "add_component needs an assembly (.sldasm) as the target document",+                )?;+                // The SAME parser the real backend uses — a request the mock+                // accepts is one SOLIDWORKS will be asked to honour.+                let reqs = crate::script::parse_components(args).map_err(HostError::msg)?;+                let mut inserted = Vec::new();+                let mut failed = Vec::new();+                for r in &reqs {+                    // The mock's filesystem IS the filesystem: a component file+                    // that is not there fails here exactly as it would live.+                    if !std::path::Path::new(&r.file).exists() {+                        failed.push(json!({+                            "filePath": r.file,+                            "error": "file not found on the DESKTOP filesystem",+                        }));+                        continue;+                    }+                    let n = self+                        .docs+                        .iter()+                        .find(|d| d.path == path)+                        .map(|d| d.components.len())+                        .unwrap_or(0)+                        + 1;+                    let name = format!("{}-{n}", file_stem(&r.file));+                    if let Some(d) = self.docs.iter_mut().find(|d| d.path == path) {+                        d.components.push((r.file.clone(), r.config.clone()));+                        d.dirty = true;+                    }+                    inserted.push(json!({+                        "filePath": r.file,+                        "name": name,+                        "method": "AddComponent5/1",+                        "preloaded": false,+                        "positionMm": [+                            r.x / crate::script::MM,+                            r.y / crate::script::MM,+                            r.z / crate::script::MM,+                        ],+                        "rotationDeg": [+                            r.rx.to_degrees(),+                            r.ry.to_degrees(),+                            r.rz.to_degrees(),+                        ],+                    }));+                }+                let count =+                    self.docs.iter().find(|d| d.path == path).map(|d| d.components.len()).unwrap_or(0);+                Ok(json!({+                    "assembly": self.doc_info(&path),+                    "requested": reqs.len(),+                    "insertedCount": inserted.len(),+                    "inserted": inserted,+                    "failedCount": failed.len(),+                    "failed": failed,+                    "componentCount": count,+                    "method": "AddComponent5/1",+                    "fixedCount": 0,+                    "placedCount": inserted.len(),+                    "rotationsRequested": reqs.iter().filter(|r| r.rotated()).count(),+                    "placementNotes": [],+                    "activateErrors": 0,+                }))+            }++            "run_script" => {+                use crate::script::Op;+                let script = args.get("script").cloned().unwrap_or(Value::Null);+                // The SAME parser and the SAME validation the real backend runs,+                // so a script the mock accepts is a script SOLIDWORKS will be+                // asked to run — that is what makes the mock worth having.+                let ops = crate::script::parse(&script).map_err(HostError::msg)?;+                crate::script::validate(&ops, !self.docs.is_empty()).map_err(HostError::msg)?;+                // The SAME pinning the real backend does: every step targets the+                // document the server named (or the one a new_part step made),+                // never "whatever is active now".+                let mut pinned: Option<String> = args+                    .get("targetDocument")+                    .and_then(|v| v.as_str())+                    .filter(|s| !s.is_empty())+                    .map(String::from);+                if let Some(want) = &pinned {+                    self.resolve(&json!({"name": want}))?;+                }+                let target = match &pinned {+                    Some(n) => json!({"name": n}),+                    None => json!({}),+                };+                let mut steps = Vec::new();+                let mut created = Value::Null;+                for (i, op) in ops.iter().enumerate() {+                    let detail = match op {+                        Op::NewPart | Op::NewAssembly => {+                            let kind = if matches!(op, Op::NewPart) { "part" } else { "assembly" };+                            let r = self.call("new_document", &json!({"type": kind}))?;+                            created = r.get("created").cloned().unwrap_or(Value::Null);+                            pinned = created.get("title").and_then(|t| t.as_str()).map(String::from);+                            r+                        }+                        Op::SketchRect { plane, width, height, .. } => {+                            json!({"plane": plane, "segments": 4, "widthMm": width * 1000.0, "heightMm": height * 1000.0})+                        }+                        Op::SketchCircle { plane, radius, .. } => {+                            json!({"plane": plane, "radiusMm": radius * 1000.0, "created": true})+                        }+                        Op::Extrude { depth, .. } => {+                            let path = self.resolve(&target)?;+                            let mut made = String::from("Boss-Extrude1");+                            if let Some(d) = self.docs.iter_mut().find(|d| d.path == path) {+                                let n = d.bodies.len() + 1;+                                made = format!("Boss-Extrude{n}");+                                d.bodies.push(mock_body(&made, 50.0, 30.0, depth * 1000.0));+                                d.dimensions.insert(format!("D1@{made}"), json!(*depth));+                                d.dirty = true;+                            }+                            json!({"feature": made, "depthMm": depth * 1000.0})+                        }+                        Op::Cut { depth, through_all } => {+                            json!({"feature": "Cut-Extrude1", "throughAll": through_all, "depthMm": depth * 1000.0, "proven": false})+                        }+                        Op::SetMaterial { name, database } => {+                            let path = self.resolve(&target)?;+                            if let Some(d) = self.docs.iter_mut().find(|d| d.path == path) {+                                d.material = Some(name.clone());+                                d.dirty = true;+                            }+                            json!({"material": name, "database": database, "current": {"name": name, "database": database}})+                        }+                        Op::SetProp { name, value } => {+                            let path = self.resolve(&target)?;+                            if let Some(d) = self.docs.iter_mut().find(|d| d.path == path) {+                                d.props.insert(name.clone(), prop(value));+                                d.dirty = true;+                            }+                            json!({"property": name, "value": value, "code": 1})+                        }+                        Op::SaveAs { path } => {+                            if std::path::Path::new(path).exists() {+                                return Err(HostError::msg(format!(+                                    "refusing to overwrite an existing file: {path}"+                                )));+                            }+                            self.call("save_as", &json!({"outputPath": path, "copy": true}))?+                        }+                        Op::Rebuild => json!({"rebuilt": true}),+                        Op::ZoomFit => json!({"zoomedToFit": true}),+                    };+                    steps.push(json!({"step": i + 1, "op": op.name(), "result": detail}));+                }+                let final_target = match &pinned {+                    Some(n) => json!({"name": n}),+                    None => json!({}),+                };+                let doc = self.resolve(&final_target).ok().map(|p| self.doc_info(&p));+                Ok(json!({+                    "steps": steps,+                    "stepCount": steps.len(),+                    "created": created,+                    "targetDocument": pinned,+                    "documentName": doc.as_ref().and_then(|d| d.get("title").cloned()),+                    "doc": doc.unwrap_or(Value::Null),+                }))+            }++            other => Err(HostError::msg(format!("unknown command: {other}"))),+        }+    }+}++#[cfg(test)]+mod tests {+    use super::*;++    #[test]+    fn path_helpers_handle_both_separators() {+        assert_eq!(base_name("C:\\mock\\gearbox.sldasm"), "gearbox.sldasm");+        assert_eq!(base_name("/home/a/b.sldprt"), "b.sldprt");+        assert_eq!(file_stem("C:\\mock\\gearbox.sldasm"), "gearbox");+        assert_eq!(file_stem("noext"), "noext");+        assert_eq!(dir_name("C:\\mock\\gearbox.sldasm"), "C:\\mock");+        assert_eq!(dir_name("bare.sldprt"), "");+    }++    #[test]+    fn doc_type_detection_is_case_insensitive() {+        assert_eq!(doc_type_of("A.SLDASM"), Some("assembly"));+        assert_eq!(doc_type_of("a.sldprt"), Some("part"));+        assert_eq!(doc_type_of("a.slddrw"), Some("drawing"));+        assert_eq!(doc_type_of("a.txt"), None);+    }++    #[test]+    fn open_then_resolve_active_then_close_falls_back() {+        let mut b = MockBackend::new();+        // launch:true because opening no longer starts SOLIDWORKS on its own —+        // the SERVER decides that, per edition (see swx_open / may_launch).+        b.call("open", &json!({"path": "C:\\m\\a.sldasm", "launch": true})).unwrap();+        b.call("open", &json!({"path": "C:\\m\\b.sldprt", "launch": true})).unwrap();+        // active is the most recently opened+        let r = b.call("docs", &json!({})).unwrap();+        assert_eq!(r["active"]["path"], "C:\\m\\b.sldprt");+        b.call("close_doc", &json!({})).unwrap();+        let r = b.call("docs", &json!({})).unwrap();+        assert_eq!(r["active"]["path"], "C:\\m\\a.sldasm");+    }++    #[test]+    fn opening_a_document_does_not_start_solidworks_by_itself() {+        // swx_open used to pass launch:true unconditionally, which made it a+        // second road to CoCreateInstance that skipped the edition check.+        let mut b = MockBackend::new();+        let e = b.call("open", &json!({"path": "C:\\m\\a.sldprt"})).unwrap_err();+        assert!(e.message.contains("not running"), "{}", e.message);+    }++    #[test]+    fn bom_requires_an_assembly() {+        let mut b = MockBackend::new();+        b.call("open", &json!({"path": "C:\\m\\a.sldprt", "launch": true})).unwrap();+        let e = b.call("bom", &json!({})).unwrap_err();+        assert!(e.message.contains("assembly"), "{}", e.message);+    }+}
src/comhost/mod.rsadded+448
@@ -0,0 +1,448 @@+//! The com-host CHILD PROCESS, seen from the server side.+//!+//! The server spawns its own exe again with `--com-host` and speaks JSON-lines+//! over that child's stdio:+//!+//! ```text+//! ->  {"id":1,"cmd":"open","args":{"path":"C:\\a.sldprt"}}+//! <-  {"event":"ready","pid":4242}                 (once, at boot)+//! <-  {"id":1,"ok":true,"result":{...}}+//! <-  {"id":1,"ok":false,"error":"...","detail":"..."}+//! ```+//!+//! stdout carries protocol lines ONLY; the child's diagnostics go to stderr,+//! which this module drains, mirrors to our own stderr (ab captures it) and+//! keeps the tail of, so a failure can hand the caller `detail`.+//!+//! One request is in flight at a time — the COM apartment is single-threaded+//! and SOLIDWORKS is one app, so callers queue on a mutex. A request that+//! times out (a modal dialog, a rebuild that never returns) or a child that+//! dies takes the child down with it; the NEXT call respawns. That is the+//! whole reason the COM object lives in a child instead of a thread.++pub mod created_store;+pub mod expr;+pub mod host;+pub mod mock;++#[cfg(windows)]+pub mod com;+#[cfg(windows)]+pub mod variant;++use serde_json::{json, Value};+use std::collections::VecDeque;+use std::io::{BufRead, BufReader, Write};+use std::process::{Child, ChildStdin, Command, Stdio};+use std::sync::atomic::{AtomicU64, Ordering};+use std::sync::mpsc::{Receiver, RecvTimeoutError};+use std::sync::{Arc, Mutex};+use std::time::{Duration, Instant};++/// Default per-request budget: below ab's default 120s verb timeout, so a stuck+/// COM call comes back as an honest bridge error instead of ab's 504.+pub const DEFAULT_TIMEOUT: Duration = Duration::from_secs(110);+/// How long the child gets to print its `ready` line.+const BOOT_TIMEOUT: Duration = Duration::from_secs(30);+const STDERR_TAIL: usize = 200;++/// A failure that came from (or happened while talking to) the com host.+#[derive(Debug, Clone)]+pub struct SidecarError {+    pub message: String,+    pub detail: Option<String>,+    /// The host's branchable code, if it gave one.+    pub code: Option<String>,+}++impl SidecarError {+    fn new(message: impl Into<String>, detail: Option<String>) -> Self {+        Self { message: message.into(), detail, code: None }+    }++    fn coded(message: impl Into<String>, detail: Option<String>, code: Option<String>) -> Self {+        Self { message: message.into(), detail, code }+    }+}++impl std::fmt::Display for SidecarError {+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {+        f.write_str(&self.message)+    }+}++struct Live {+    child: Child,+    stdin: ChildStdin,+    lines: Receiver<String>,+    tail: Arc<Mutex<VecDeque<String>>>,+    pid: u32,+}++/// A read of the com host that never blocks on the busy mutex. `pid` comes from+/// an atomic; `busy` and `inFlight` come from a try_lock, so `swx_status` (the+/// declared statusVerb, which ab tells callers to poll) can answer in+/// milliseconds even while a 580s Pack and Go holds the request lock.+#[derive(Clone, Debug)]+pub struct Snapshot {+    pub pid: Option<u32>,+    pub busy: bool,+    pub in_flight: Option<String>,+}++/// Owns the com-host child: lazy spawn, request/response, restart after a+/// crash or hang.+pub struct ComHost {+    live: Mutex<Option<Live>>,+    seq: AtomicU64,+    /// The current child's pid, readable WITHOUT the `live` lock. 0 = none.+    pid: std::sync::atomic::AtomicU32,+    /// The verb currently in flight (short lock, never held across the COM+    /// wait), so a status poll can name what is keeping the host busy.+    in_flight: Mutex<Option<String>>,+}++impl Default for ComHost {+    fn default() -> Self {+        Self::new()+    }+}++impl ComHost {+    pub fn new() -> Self {+        Self {+            live: Mutex::new(None),+            seq: AtomicU64::new(0),+            pid: std::sync::atomic::AtomicU32::new(0),+            in_flight: Mutex::new(None),+        }+    }++    /// pid of the running child, or None when nothing is spawned. From the+    /// atomic, so it never blocks. Surfaced in `swx_status.com.hostPid` so a+    /// human (or a test) can see WHICH process holds the COM object, and watch+    /// it change after a respawn.+    pub fn pid(&self) -> Option<u32> {+        match self.pid.load(Ordering::SeqCst) {+            0 => None,+            n => Some(n),+        }+    }++    /// A non-blocking read of the host's state for `swx_status`.+    ///+    /// `busy` must mean "a verb holds the request lock", NOT "the lock is+    /// poisoned" — this is the statusVerb ab polls, so it must never lie about+    /// being busy. So a poisoned lock (a panic left it that way) is treated as+    /// contention-free: report not-busy and, for in_flight, recover the value+    /// through the poison rather than dropping to `None`.+    pub fn snapshot(&self) -> Snapshot {+        use std::sync::TryLockError;+        let busy = match self.live.try_lock() {+            Ok(_) => false,                       // uncontended+            Err(TryLockError::WouldBlock) => true, // a verb genuinely holds it+            Err(TryLockError::Poisoned(_)) => false, // a past panic, not busy now+        };+        let in_flight = match self.in_flight.try_lock() {+            Ok(g) => g.clone(),+            Err(TryLockError::WouldBlock) => None,+            Err(TryLockError::Poisoned(g)) => g.into_inner().clone(),+        };+        Snapshot { pid: self.pid(), busy, in_flight }+    }++    /// Run one command against the com host. Spawns the child if needed, and+    /// transparently replaces one that died BETWEEN requests.+    ///+    /// The retry is deliberately narrow: it happens only when the child was+    /// already gone before this request was written, so nothing it asked for can+    /// have half-happened. A child that dies MID-request is reported, never+    /// silently re-run — re-running an export or a Pack and Go behind the+    /// caller's back would be worse than the error.+    pub fn call(&self, cmd: &str, args: Value, timeout: Duration) -> Result<Value, SidecarError> {+        let mut guard = self.live.lock().unwrap_or_else(|e| e.into_inner());++        for attempt in 0..2 {+            // A child that has exited (crashed, or was killed out from under us)+            // is replaced before we write anything into a dead pipe.+            if let Some(live) = guard.as_mut() {+                if matches!(live.child.try_wait(), Ok(Some(_))) {+                    println!("[swx] com host (pid {}) is gone; respawning", live.pid);+                    kill(guard.take());+                }+            }+            if guard.is_none() {+                *guard = Some(spawn_child()?);+            }+            self.sync_pid(&guard);+            let id = self.seq.fetch_add(1, Ordering::SeqCst) + 1;+            let req = json!({"id": id, "cmd": cmd, "args": args});++            {+                let live = guard.as_mut().expect("spawned above");+                let mut line = serde_json::to_string(&req).unwrap_or_default();+                line.push('\n');+                if let Err(e) =+                    live.stdin.write_all(line.as_bytes()).and_then(|_| live.stdin.flush())+                {+                    let tail = tail_text(&live.tail);+                    kill(guard.take());+                    self.sync_pid(&guard);+                    if attempt == 0 {+                        println!("[swx] com host write failed ({e}); respawning and retrying");+                        continue;+                    }+                    return Err(SidecarError::new(+                        format!("com host write failed ({e}); it will respawn on the next call"),+                        tail,+                    ));+                }+            }++            // Record the in-flight verb (short lock, released immediately) so a+            // concurrent status poll can name what is keeping the host busy.+            *self.in_flight.lock().unwrap_or_else(|e| e.into_inner()) = Some(cmd.to_string());+            let out = self.await_response(&mut guard, id, cmd, timeout);+            *self.in_flight.lock().unwrap_or_else(|e| e.into_inner()) = None;+            self.sync_pid(&guard);+            return out;+        }+        unreachable!("the loop returns or continues exactly once")+    }++    /// Keep the lock-free pid atomic in step with the live child.+    fn sync_pid(&self, guard: &Option<Live>) {+        self.pid.store(guard.as_ref().map(|l| l.pid).unwrap_or(0), Ordering::SeqCst);+    }++    fn await_response(+        &self,+        guard: &mut std::sync::MutexGuard<'_, Option<Live>>,+        id: u64,+        cmd: &str,+        timeout: Duration,+    ) -> Result<Value, SidecarError> {+        let deadline = Instant::now() + timeout;+        loop {+            let remaining = deadline.saturating_duration_since(Instant::now());+            let live = guard.as_mut().expect("still live");+            let recv = if remaining.is_zero() {+                Err(RecvTimeoutError::Timeout)+            } else {+                live.lines.recv_timeout(remaining)+            };+            match recv {+                Ok(line) => {+                    // Anything that is not a well-formed response for THIS request+                    // is skipped, never fatal: a stray print from the host app, an+                    // event line, or a late answer to a request that already timed+                    // out. The deadline still governs, so we cannot spin forever.+                    let resp: Value = match serde_json::from_str(&line) {+                        Ok(v) => v,+                        Err(_) => continue,+                    };+                    if resp.get("event").is_some() {+                        continue;+                    }+                    if resp.get("id").and_then(|v| v.as_u64()) != Some(id) {+                        continue;+                    }+                    if resp.get("ok").and_then(|v| v.as_bool()) != Some(true) {+                        let message = resp+                            .get("error")+                            .and_then(|v| v.as_str())+                            .unwrap_or("com host error")+                            .to_string();+                        let detail =+                            resp.get("detail").and_then(|v| v.as_str()).map(|s| s.to_string());+                        let code =+                            resp.get("errorCode").and_then(|v| v.as_str()).map(|s| s.to_string());+                        return Err(SidecarError::coded(message, detail, code));+                    }+                    return Ok(resp.get("result").cloned().unwrap_or_else(|| json!({})));+                }+                Err(RecvTimeoutError::Timeout) => {+                    let tail = tail_text(&live.tail);+                    kill(guard.take());+                    return Err(SidecarError::new(+                        format!(+                            "com host did not answer '{cmd}' within {}s (SOLIDWORKS may be busy \+                             with a modal dialog or a huge rebuild); it was killed and respawns \+                             on the next call",+                            timeout.as_secs()+                        ),+                        tail,+                    ));+                }+                Err(RecvTimeoutError::Disconnected) => {+                    let tail = tail_text(&live.tail);+                    let code = live.child.try_wait().ok().flatten().map(|s| s.to_string());+                    kill(guard.take());+                    return Err(SidecarError::new(+                        format!(+                            "com host exited ({}) while serving '{cmd}'; it respawns on the next call",+                            code.unwrap_or_else(|| "unknown status".into())+                        ),+                        tail,+                    ));+                }+            }+        }+    }++    /// Ask the child to exit, then make sure of it. Idempotent, and it must NOT+    /// block on the request lock — ab's uninstall cascade has a 120s budget, but+    /// a 580s Pack and Go could be holding that lock.+    ///+    /// So: try_lock for the graceful path; if it is contended, kill the child by+    /// pid (via the OS) instead. Killing the child makes its wedged call return+    /// an error, which releases the lock — the cascade proceeds, and no orphaned+    /// process is left holding a COM object.+    pub fn shutdown(&self) {+        if let Ok(mut guard) = self.live.try_lock() {+            if let Some(live) = guard.as_mut() {+                let _ = live.stdin.write_all(b"{\"id\":0,\"cmd\":\"__exit__\"}\n");+                let _ = live.stdin.flush();+                std::thread::sleep(Duration::from_millis(200));+            }+            kill(guard.take());+            self.pid.store(0, Ordering::SeqCst);+            return;+        }+        // Contended by an in-flight verb. Kill by pid so we neither block nor+        // wait on a lock a long COM call owns. This pid can only be a child the+        // contending call is actively holding (the atomic tracks the LIVE child+        // and is zeroed on every take), so there is no stale-pid window here —+        // the verb holding the lock is what keeps the child, and the pid, alive.+        if let Some(pid) = self.pid() {+            println!("[swx] com host busy at shutdown; killing pid {pid} to unblock the cascade");+            kill_by_pid(pid);+        }+    }+}++/// OS-level kill of the child by pid, used only when the request lock is held+/// by a long COM call and we cannot reach the `Child` handle behind it.+fn kill_by_pid(pid: u32) {+    #[cfg(windows)]+    {+        use std::os::windows::process::CommandExt;+        let _ = std::process::Command::new("taskkill")+            .args(["/F", "/T", "/PID", &pid.to_string()])+            .creation_flags(0x0800_0000) // CREATE_NO_WINDOW+            .output();+    }+    #[cfg(unix)]+    {+        let _ = std::process::Command::new("kill").args(["-9", &pid.to_string()]).output();+    }+}++fn kill(live: Option<Live>) {+    if let Some(mut live) = live {+        let _ = live.child.kill();+        let _ = live.child.wait();+    }+}++fn tail_text(tail: &Arc<Mutex<VecDeque<String>>>) -> Option<String> {+    let t = tail.lock().unwrap_or_else(|e| e.into_inner());+    if t.is_empty() {+        None+    } else {+        Some(t.iter().cloned().collect::<Vec<_>>().join("\n"))+    }+}++fn spawn_child() -> Result<Live, SidecarError> {+    let exe = std::env::current_exe()+        .map_err(|e| SidecarError::new(format!("cannot locate our own exe: {e}"), None))?;+    let mut cmd = Command::new(&exe);+    cmd.arg("--com-host")+        // The child's watchdog polls this so it exits even if the server is+        // hard-killed while a COM call is wedged (no orphan holding a COM object).+        .env("SWX_PARENT_PID", std::process::id().to_string())+        .stdin(Stdio::piped())+        .stdout(Stdio::piped())+        .stderr(Stdio::piped());+    #[cfg(windows)]+    {+        // CREATE_NO_WINDOW — a bridge child must never blip a console window on+        // the user's desktop.+        use std::os::windows::process::CommandExt;+        cmd.creation_flags(0x0800_0000);+    }+    let mut child = cmd+        .spawn()+        .map_err(|e| SidecarError::new(format!("failed to spawn com host: {e}"), None))?;++    let pid = child.id();+    let stdin = child.stdin.take().expect("piped");+    let stdout = child.stdout.take().expect("piped");+    let stderr = child.stderr.take().expect("piped");++    // stdout reader thread: turns blocking line reads into something we can put+    // a deadline on. Its sender dropping = the child's stdout closed.+    let (tx, rx) = std::sync::mpsc::channel::<String>();+    std::thread::Builder::new()+        .name("swx-comhost-stdout".into())+        .spawn(move || {+            for line in BufReader::new(stdout).lines() {+                match line {+                    Ok(l) => {+                        if tx.send(l).is_err() {+                            break;+                        }+                    }+                    Err(_) => break,+                }+            }+        })+        .map_err(|e| SidecarError::new(format!("reader thread: {e}"), None))?;++    // stderr drain: mirrored to our stderr (ab captures it) and kept as a tail+    // so a failed verb can carry `detail`.+    let tail = Arc::new(Mutex::new(VecDeque::<String>::new()));+    let tail2 = Arc::clone(&tail);+    std::thread::Builder::new()+        .name("swx-comhost-stderr".into())+        .spawn(move || {+            for line in BufReader::new(stderr).lines().map_while(Result::ok) {+                let line = line.trim_end().to_string();+                if line.is_empty() {+                    continue;+                }+                eprintln!("[swx-com] {line}");+                let mut t = tail2.lock().unwrap_or_else(|e| e.into_inner());+                t.push_back(line);+                while t.len() > STDERR_TAIL {+                    t.pop_front();+                }+            }+        })+        .map_err(|e| SidecarError::new(format!("stderr thread: {e}"), None))?;++    let live = Live { child, stdin, lines: rx, tail, pid };++    // Wait for the ready line so the first request never races the boot.+    let deadline = Instant::now() + BOOT_TIMEOUT;+    loop {+        let remaining = deadline.saturating_duration_since(Instant::now());+        match live.lines.recv_timeout(remaining) {+            Ok(line) => {+                if let Ok(v) = serde_json::from_str::<Value>(&line) {+                    if v.get("event").and_then(|e| e.as_str()) == Some("ready") {+                        println!("[swx] com host up (pid {pid}, mock={})", crate::is_mock());+                        return Ok(live);+                    }+                }+                // Not the ready line — keep waiting (a noisy host is not a dead one).+            }+            Err(_) => {+                let detail = tail_text(&live.tail);+                kill(Some(live));+                return Err(SidecarError::new("com host failed to boot", detail));+            }+        }+    }+}
src/comhost/variant.rsadded+509
@@ -0,0 +1,509 @@+//! Late-bound COM plumbing: VARIANTs and IDispatch calls, Windows only.+//!+//! SOLIDWORKS ships a type library, but a bridge that early-binds it needs the+//! interop assemblies of the exact installed version. Late binding+//! (`GetIDsOfNames` + `Invoke`) is what the PowerShell sidecar did and what+//! every SOLIDWORKS macro does — it works against whatever version is on the+//! machine, which is the only thing a bridge can promise.+//!+//! Everything here is `unsafe` at the edges and small on purpose: a [`Var`]+//! owns its VARIANT and clears it on drop; [`Disp`] turns a name plus arguments+//! into an `Invoke`, and turns an HRESULT plus EXCEPINFO into an error message+//! a human can act on.++use std::ffi::c_void;+use windows::core::{IUnknown, Interface, BSTR, GUID, PCWSTR};+use windows::Win32::System::Com::{+    IDispatch, DISPATCH_FLAGS, DISPATCH_METHOD, DISPATCH_PROPERTYGET, DISPATCH_PROPERTYPUT,+    DISPPARAMS, EXCEPINFO, SAFEARRAY,+};+use windows::Win32::System::Ole::{+    SafeArrayCreateVector, SafeArrayGetElement, SafeArrayGetLBound, SafeArrayGetUBound,+    SafeArrayGetVartype, SafeArrayPutElement, DISPID_PROPERTYPUT,+};+use windows::Win32::System::Variant::{+    VariantChangeType, VariantClear, VariantCopy, VARENUM, VARIANT, VT_ARRAY, VT_BOOL, VT_BSTR,+    VT_BYREF, VT_DISPATCH, VT_EMPTY, VT_I4, VT_NULL, VT_R8, VT_UNKNOWN, VT_VARIANT,+};++use super::host::HostError;++/// Method-or-property-get: let the callee decide which it is. This is what+/// VBScript and the SOLIDWORKS macro recorder do, and it saves the bridge from+/// having to know whether `ActiveDoc` is a property and `GetTitle` a method.+pub const CALL: DISPATCH_FLAGS = DISPATCH_FLAGS(DISPATCH_METHOD.0 | DISPATCH_PROPERTYGET.0);++/// An owned VARIANT. Clears itself, so a BSTR or interface pointer coming back+/// from SOLIDWORKS is released exactly once.+pub struct Var(pub VARIANT);++impl Drop for Var {+    fn drop(&mut self) {+        unsafe {+            let _ = VariantClear(&mut self.0);+        }+    }+}++unsafe fn build(vt: VARENUM, fill: impl FnOnce(&mut VARIANT)) -> Var {+    let mut v = VARIANT::default();+    (*v.Anonymous.Anonymous).vt = vt;+    fill(&mut v);+    Var(v)+}++impl Var {+    pub fn empty() -> Var {+        unsafe { build(VT_EMPTY, |_| {}) }+    }++    pub fn i4(n: i32) -> Var {+        unsafe { build(VT_I4, |v| (*v.Anonymous.Anonymous).Anonymous.lVal = n) }+    }++    pub fn r8(n: f64) -> Var {+        unsafe { build(VT_R8, |v| (*v.Anonymous.Anonymous).Anonymous.dblVal = n) }+    }++    pub fn boolean(b: bool) -> Var {+        unsafe {+            build(VT_BOOL, |v| {+                // VARIANT_BOOL: -1 is TRUE, 0 is FALSE. Not 1.+                (*v.Anonymous.Anonymous).Anonymous.boolVal =+                    windows::Win32::Foundation::VARIANT_BOOL(if b { -1 } else { 0 });+            })+        }+    }++    pub fn bstr(s: &str) -> Var {+        unsafe {+            build(VT_BSTR, |v| {+                (*v.Anonymous.Anonymous).Anonymous.bstrVal =+                    std::mem::ManuallyDrop::new(BSTR::from(s));+            })+        }+    }++    pub fn dispatch(d: &IDispatch) -> Var {+        unsafe {+            build(VT_DISPATCH, |v| {+                (*v.Anonymous.Anonymous).Anonymous.pdispVal =+                    std::mem::ManuallyDrop::new(Some(d.clone()));+            })+        }+    }++    /// A SAFEARRAY of doubles — what `IMathUtility::CreateTransform` wants, and+    /// the only array this bridge ever BUILDS (as opposed to reads). Sixteen+    /// doubles is a component transform; nothing else here needs one.+    pub fn r8_array(values: &[f64]) -> Var {+        unsafe {+            let psa = SafeArrayCreateVector(VT_R8, 0, values.len() as u32);+            if psa.is_null() {+                return Var::empty();+            }+            for (i, v) in values.iter().enumerate() {+                let idx = [i as i32];+                let _ = SafeArrayPutElement(+                    psa,+                    idx.as_ptr(),+                    v as *const f64 as *const std::ffi::c_void,+                );+            }+            build(VARENUM(VT_ARRAY.0 | VT_R8.0), |v| {+                (*v.Anonymous.Anonymous).Anonymous.parray = psa;+            })+        }+    }++    /// `[ref] i32` — the byref out-parameter shape SOLIDWORKS uses everywhere+    /// (OpenDoc6 errors/warnings, Save3, ...). The i32 must outlive the call.+    pub fn byref_i4(p: *mut i32) -> Var {+        unsafe {+            build(VARENUM(VT_I4.0 | VT_BYREF.0), |v| {+                (*v.Anonymous.Anonymous).Anonymous.plVal = p+            })+        }+    }++    /// `[ref] BSTR` — CustomPropertyManager::Get4's two out-parameters.+    pub fn byref_bstr(p: *mut BSTR) -> Var {+        unsafe {+            build(VARENUM(VT_BSTR.0 | VT_BYREF.0), |v| {+                (*v.Anonymous.Anonymous).Anonymous.pbstrVal = p+            })+        }+    }++    /// `[ref] VARIANT` — Pack and Go's GetDocumentSaveToNames.+    pub fn byref_variant(p: *mut VARIANT) -> Var {+        unsafe {+            build(VARENUM(VT_VARIANT.0 | VT_BYREF.0), |v| {+                (*v.Anonymous.Anonymous).Anonymous.pvarVal = p+            })+        }+    }++    pub fn vt(&self) -> u16 {+        unsafe { self.0.Anonymous.Anonymous.vt.0 }+    }++    pub fn is_null(&self) -> bool {+        let vt = self.vt();+        if vt == VT_EMPTY.0 || vt == VT_NULL.0 {+            return true;+        }+        if vt == VT_DISPATCH.0 {+            return self.as_dispatch().is_none();+        }+        false+    }++    pub fn as_i32(&self) -> Option<i32> {+        unsafe { coerce(&self.0, VT_I4).map(|v| v.0.Anonymous.Anonymous.Anonymous.lVal) }+    }++    pub fn as_f64(&self) -> Option<f64> {+        unsafe { coerce(&self.0, VT_R8).map(|v| v.0.Anonymous.Anonymous.Anonymous.dblVal) }+    }++    pub fn as_bool(&self) -> Option<bool> {+        unsafe { coerce(&self.0, VT_BOOL).map(|v| v.0.Anonymous.Anonymous.Anonymous.boolVal.0 != 0) }+    }++    /// Anything printable, coerced to a string (None for EMPTY/NULL).+    pub fn as_string(&self) -> Option<String> {+        if self.is_null() {+            return None;+        }+        unsafe {+            coerce(&self.0, VT_BSTR)+                .map(|v| v.0.Anonymous.Anonymous.Anonymous.bstrVal.to_string())+        }+    }++    pub fn as_dispatch(&self) -> Option<IDispatch> {+        unsafe {+            let inner = &self.0.Anonymous.Anonymous;+            if inner.vt.0 == VT_DISPATCH.0 {+                (*inner.Anonymous.pdispVal).clone()+            } else if inner.vt.0 == (VT_DISPATCH.0 | VT_BYREF.0) {+                let p = inner.Anonymous.ppdispVal;+                if p.is_null() {+                    None+                } else {+                    (*p).clone()+                }+            } else {+                None+            }+        }+    }++    /// An owned deep copy (VariantCopy → new refs / new BSTR), so the result and+    /// `self` can both drop without a double-free. Used to lift a scalar into a+    /// one-element array.+    pub fn copy(&self) -> Var {+        unsafe {+            let mut dest = VARIANT::default();+            if VariantCopy(&mut dest, &self.0).is_err() {+                return Var::empty();+            }+            Var(dest)+        }+    }++    /// The elements of a SAFEARRAY-carrying VARIANT, each boxed as a `Var`.+    /// Handles the element types SOLIDWORKS returns: VARIANT (the usual),+    /// DISPATCH/UNKNOWN (component lists), R8 (center of mass, boxes), BSTR, I4.+    ///+    /// A NON-array scalar becomes a one-element vec — matching the PowerShell+    /// `@(...)` coercion the sidecar relied on, so a single open document, a+    /// single interference, or a lone configuration name is reported as a+    /// one-item list, never as `[]`.+    pub fn as_array(&self) -> Vec<Var> {+        unsafe {+            let inner = &self.0.Anonymous.Anonymous;+            if inner.vt.0 & VT_ARRAY.0 == 0 {+                return if self.is_null() { Vec::new() } else { vec![self.copy()] };+            }+            let psa: *mut SAFEARRAY = if inner.vt.0 & VT_BYREF.0 != 0 {+                let pp = inner.Anonymous.pparray;+                if pp.is_null() {+                    return Vec::new();+                }+                *pp+            } else {+                inner.Anonymous.parray+            };+            if psa.is_null() {+                return Vec::new();+            }+            let (lb, ub) = match (SafeArrayGetLBound(psa, 1), SafeArrayGetUBound(psa, 1)) {+                (Ok(l), Ok(u)) => (l, u),+                _ => return Vec::new(),+            };+            let elem_vt = SafeArrayGetVartype(psa).map(|v| v.0).unwrap_or(VT_VARIANT.0);+            let mut out = Vec::new();+            for i in lb..=ub {+                let idx = [i];+                if elem_vt == VT_VARIANT.0 {+                    let mut v = VARIANT::default();+                    if SafeArrayGetElement(psa, idx.as_ptr(), &mut v as *mut _ as *mut c_void)+                        .is_ok()+                    {+                        out.push(Var(v));+                    }+                } else if elem_vt == VT_DISPATCH.0 || elem_vt == VT_UNKNOWN.0 {+                    let mut p: *mut c_void = std::ptr::null_mut();+                    if SafeArrayGetElement(psa, idx.as_ptr(), &mut p as *mut _ as *mut c_void)+                        .is_ok()+                        && !p.is_null()+                    {+                        // SafeArrayGetElement AddRef'd for us. Query for+                        // IDispatch (SOLIDWORKS objects are all dispatch); `unk`+                        // takes the ref SafeArrayGetElement added and releases it,+                        // Var::dispatch adds its own.+                        let unk = IUnknown::from_raw(p);+                        if let Ok(d) = unk.cast::<IDispatch>() {+                            out.push(Var::dispatch(&d));+                        }+                    }+                } else if elem_vt == VT_R8.0 {+                    let mut d = 0f64;+                    if SafeArrayGetElement(psa, idx.as_ptr(), &mut d as *mut _ as *mut c_void)+                        .is_ok()+                    {+                        out.push(Var::r8(d));+                    }+                } else if elem_vt == VT_BSTR.0 {+                    let mut b = BSTR::new();+                    if SafeArrayGetElement(psa, idx.as_ptr(), &mut b as *mut _ as *mut c_void)+                        .is_ok()+                    {+                        out.push(Var::bstr(&b.to_string()));+                    }+                } else if elem_vt == VT_I4.0 {+                    let mut n = 0i32;+                    if SafeArrayGetElement(psa, idx.as_ptr(), &mut n as *mut _ as *mut c_void)+                        .is_ok()+                    {+                        out.push(Var::i4(n));+                    }+                }+            }+            out+        }+    }++    /// Best-effort JSON for a value we do not know the shape of (the escape+    /// hatch, and anything SOLIDWORKS hands back loosely typed).+    pub fn to_json(&self) -> serde_json::Value {+        use serde_json::Value;+        let vt = self.vt();+        if self.is_null() {+            return Value::Null;+        }+        if vt & VT_ARRAY.0 != 0 {+            return Value::Array(self.as_array().iter().map(|v| v.to_json()).collect());+        }+        let base = vt & !VT_BYREF.0;+        if base == VT_BOOL.0 {+            return self.as_bool().map(Value::from).unwrap_or(Value::Null);+        }+        if base == VT_R8.0 {+            return self.as_f64().map(Value::from).unwrap_or(Value::Null);+        }+        if base == VT_I4.0 {+            return self.as_i32().map(Value::from).unwrap_or(Value::Null);+        }+        if base == VT_DISPATCH.0 {+            return Value::from("<COM object>");+        }+        self.as_string().map(Value::from).unwrap_or(Value::Null)+    }+}++/// A copy of `src` as type `to`, owned (and freed) by the returned Var.+/// VariantChangeType handles the same-type case as a plain copy, so there is no+/// special case to get wrong.+unsafe fn coerce(src: &VARIANT, to: VARENUM) -> Option<Var> {+    let mut dest = VARIANT::default();+    VariantChangeType(&mut dest, src, Default::default(), to).ok().map(|_| Var(dest))+}++/// A live IDispatch we can call by name.+#[derive(Clone)]+pub struct Disp(pub IDispatch);++impl Disp {+    /// DISPID for a member name. A missing name is the single most useful COM+    /// error to report well: it usually means the SOLIDWORKS version does not+    /// have that API, not that the bridge is broken.+    pub fn dispid(&self, name: &str) -> Result<i32, HostError> {+        let wide: Vec<u16> = name.encode_utf16().chain(std::iter::once(0)).collect();+        let names = [PCWSTR(wide.as_ptr())];+        let mut ids = [0i32];+        unsafe {+            self.0+                .GetIDsOfNames(&GUID::zeroed(), names.as_ptr(), 1, 0, ids.as_mut_ptr())+                .map_err(|e| {+                    HostError::detailed(+                        format!("SOLIDWORKS has no member named '{name}'"),+                        format!("{e}"),+                    )+                })?;+        }+        Ok(ids[0])+    }++    /// SOLIDWORKS is a single-threaded-apartment server with no message filter+    /// of its own: while it is mid-rebuild or pumping its UI it REJECTS incoming+    /// calls rather than queueing them. Retrying is the documented answer.+    pub const RPC_E_CALL_REJECTED: i32 = 0x8001_0001u32 as i32;+    pub const RPC_E_SERVERCALL_RETRYLATER: i32 = 0x8001_010Au32 as i32;++    /// `invoke`, with a backoff for a BUSY SOLIDWORKS.+    ///+    /// Without this a rejected call surfaced as a plain failure and, worse, as a+    /// WRONG ANSWER: `GetDocuments` handed back an empty/null VARIANT (not an+    /// error), `as_array()` turned that into an empty Vec, and `swx_docs`+    /// answered `success:true` with zero documents while 51 were open. Every+    /// title resolution and ownership check built on that read then concluded+    /// "no open document is titled 'Assem24'" or "this bridge did not create it"+    /// for a document made seconds earlier.+    pub fn invoke(&self, name: &str, flags: DISPATCH_FLAGS, args: &[&Var]) -> Result<Var, HostError> {+        let mut delay_ms = 100u64;+        let mut total = 0u64;+        loop {+            match self.invoke_once(name, flags, args) {+                Err(e) if e.code.as_deref() == Some("com_call_rejected") && total < 5_000 => {+                    std::thread::sleep(std::time::Duration::from_millis(delay_ms));+                    total += delay_ms;+                    delay_ms = (delay_ms * 2).min(1_600);+                }+                other => return other,+            }+        }+    }++    /// Invoke `name` with `args` in source order (DISPPARAMS wants them+    /// reversed; that is this function's job, not the caller's).+    pub fn invoke_once(&self, name: &str, flags: DISPATCH_FLAGS, args: &[&Var]) -> Result<Var, HostError> {+        let id = self.dispid(name)?;+        // OWNERSHIP: DISPPARAMS wants an array of [in] VARIANTs, and Invoke does+        // NOT take ownership of them. VARIANT has real drop glue in this crate+        // (it clears via VariantClear), so the array MUST NOT be a second owner+        // of each argument's contents — otherwise the array's drop and the+        // caller's `Var` drop both VariantClear the same BSTR / IDispatch, which+        // is a heap double-free and a premature Release of a live SOLIDWORKS+        // interface. So the array holds ManuallyDrop bitwise copies: the `Var`+        // arguments (borrowed here, still alive) remain the sole owners and are+        // the only things that clear.+        let mut raw: Vec<std::mem::ManuallyDrop<VARIANT>> = args+            .iter()+            .rev()+            .map(|v| std::mem::ManuallyDrop::new(unsafe { std::ptr::read(&v.0) }))+            .collect();+        let mut put_id = DISPID_PROPERTYPUT;+        let params = DISPPARAMS {+            rgvarg: if raw.is_empty() {+                std::ptr::null_mut()+            } else {+                raw.as_mut_ptr() as *mut VARIANT+            },+            rgdispidNamedArgs: if flags == DISPATCH_PROPERTYPUT {+                &mut put_id+            } else {+                std::ptr::null_mut()+            },+            cArgs: raw.len() as u32,+            cNamedArgs: u32::from(flags == DISPATCH_PROPERTYPUT),+        };+        let mut result = VARIANT::default();+        let mut excep = EXCEPINFO::default();+        let mut arg_err = 0u32;+        let outcome = unsafe {+            self.0.Invoke(+                id,+                &GUID::zeroed(),+                0,+                flags,+                &params,+                Some(&mut result),+                Some(&mut excep),+                Some(&mut arg_err),+            )+        };+        // EXCEPINFO's BSTR fields are ManuallyDrop<BSTR> with no Drop of their+        // own; on a failed Invoke they may hold allocated strings, so read and+        // then free them (a null BSTR frees to a no-op, so this is safe always).+        let (source, description) = (excep.bstrSource.to_string(), excep.bstrDescription.to_string());+        unsafe {+            std::mem::ManuallyDrop::drop(&mut excep.bstrSource);+            std::mem::ManuallyDrop::drop(&mut excep.bstrDescription);+            std::mem::ManuallyDrop::drop(&mut excep.bstrHelpFile);+        }+        if let Err(ref e) = outcome {+            let code = e.code().0;+            if code == Self::RPC_E_CALL_REJECTED || code == Self::RPC_E_SERVERCALL_RETRYLATER {+                return Err(HostError {+                    message: format!("SOLIDWORKS was busy and rejected '{name}'"),+                    detail: Some(format!("{e}")),+                    code: Some("com_call_rejected".to_string()),+                });+            }+        }+        outcome.map_err(|e| {+            let mut detail = format!("{e}");+            if !source.is_empty() {+                detail.push_str(&format!(" [{source}]"));+            }+            if !description.is_empty() {+                detail.push_str(&format!(": {description}"));+            }+            if arg_err != 0 || !args.is_empty() {+                detail.push_str(&format!(" (argument index {arg_err})"));+            }+            HostError::detailed(format!("SOLIDWORKS rejected '{name}'"), detail)+        })?;+        Ok(Var(result))+    }++    /// `obj.Name(...)` — method or property get.+    pub fn call(&self, name: &str, args: &[&Var]) -> Result<Var, HostError> {+        self.invoke(name, CALL, args)+    }++    /// `obj.Name` where the result must be another object.+    pub fn obj(&self, name: &str, args: &[&Var]) -> Result<Option<Disp>, HostError> {+        Ok(self.call(name, args)?.as_dispatch().map(Disp))+    }++    /// `obj.Name = value`.+    pub fn put(&self, name: &str, value: &Var) -> Result<(), HostError> {+        self.invoke(name, DISPATCH_PROPERTYPUT, &[value])?;+        Ok(())+    }++    /// A property/method whose failure does not matter (best-effort settings).+    pub fn try_put(&self, name: &str, value: &Var) {+        let _ = self.put(name, value);+    }++    pub fn string(&self, name: &str, args: &[&Var]) -> Option<String> {+        self.call(name, args).ok().and_then(|v| v.as_string())+    }++    pub fn int(&self, name: &str, args: &[&Var]) -> Option<i32> {+        self.call(name, args).ok().and_then(|v| v.as_i32())+    }++    pub fn float(&self, name: &str, args: &[&Var]) -> Option<f64> {+        self.call(name, args).ok().and_then(|v| v.as_f64())+    }++    pub fn flag(&self, name: &str, args: &[&Var]) -> Option<bool> {+        self.call(name, args).ok().and_then(|v| v.as_bool())+    }+}
src/detect.rsadded+765
@@ -0,0 +1,765 @@+//! Find SOLIDWORKS installs and running instances (Windows).+//!+//! Detection ONLY. ab's rule for host apps is detect-by-default, install+//! on-request — and SOLIDWORKS has no silent free installer anyway (desktop+//! trial serials come from a reseller), so the bridge reports absence with next+//! steps instead of ever attempting an install itself.+//!+//! Three signals, cheapest and most reliable first:+//!   1. the `App Paths\SLDWORKS.exe` registry key (HKLM then HKCU),+//!   2. the known install-path shapes under Program Files,+//!   3. `HKLM\SOFTWARE\SolidWorks` subkeys for the version census,+//! plus a `tasklist` check for whether it is running right now.++use serde_json::{json, Value};++#[derive(Clone, Debug, Default)]+pub struct Detection {+    pub installed: bool,+    pub exe: Option<String>,+    pub registry_versions: Vec<String>,+    pub running: bool,+    /// Is the 3DEXPERIENCE Launcher present on this machine? A SECOND,+    /// independent signal for [`Detection::edition`] — the install path alone is+    /// a substring heuristic, and getting the edition wrong is what puts the+    /// "launch me from the Platform" modal back on the user's screen.+    pub launcher_present: bool,+    /// The Platform-created shortcut that STARTS SOLIDWORKS Connected, if this+    /// machine has one. See [`find_shortcut`] — this is the field that turned+    /// "cannot be launched programmatically" into a launch that works.+    pub shortcut: Option<String>,+}++impl Detection {+    pub fn to_json(&self) -> Value {+        let edition = self.edition();+        json!({+            "installed": self.installed,+            "exe": self.exe,+            "registryVersions": self.registry_versions,+            "running": self.running,+            "platform": std::env::consts::OS,+            "edition": edition,+            "canLaunchProgrammatically": self.can_launch(),+            "shortcut": self.shortcut,+            "launchRoute": self.launch_route().name(),+        })+    }++    /// HOW this bridge may start SOLIDWORKS, if it may at all.+    pub fn launch_route(&self) -> LaunchRoute {+        launch_route_from(self.installed, self.edition(), self.shortcut.as_deref())+    }++    /// Which SOLIDWORKS this is: `"connected"`, `"desktop"` or `"unknown"`.+    ///+    /// The distinction is not cosmetic — it decides whether `swx_start` may+    /// launch the application at all.+    ///+    /// LIVE FINDING (2026-09-02): on **SOLIDWORKS Connected** (the+    /// 3DEXPERIENCE-hosted editions, which includes "Design Professional for+    /// Makers"), `CoCreateInstance(SldWorks.Application)` starts a process that+    /// immediately puts up *"SOLIDWORKS Design must be launched from the+    /// 3DEXPERIENCE Platform or from the desktop shortcut created from the+    /// Platform"* and never becomes a drivable COM server. Launching is+    /// human-gated by Dassault. Classic desktop SOLIDWORKS is unaffected, so the+    /// launch path stays — behind this check.+    ///+    /// THREE independent signals, because the first version of this was a single+    /// substring test on an install path nobody had ever observed on the target+    /// machine, and a wrong answer means firing the launch that produces that+    /// modal. `"desktop"` now requires POSITIVE evidence; anything unrecognised+    /// is `"unknown"`, and unknown does not launch.+    pub fn edition(&self) -> &'static str {+        edition_from(self.exe.as_deref(), &self.registry_versions, self.launcher_present)+    }++    /// May this bridge start SOLIDWORKS itself?+    ///+    /// ONLY a positively-identified classic desktop install. An unrecognised+    /// layout answers NO: the cost of refusing a launch we could have made is+    /// one sentence asking the user to click their own shortcut, and the cost of+    /// making a launch we should have refused is a modal dialog and a dead+    /// process on their machine. Those are not close.+    pub fn can_launch(&self) -> bool {+        self.installed && self.edition() == "desktop"+    }+}++/// The edition decision as a PURE function, so both install layouts can be+/// unit-tested on any host — the previous version could only be exercised on a+/// Windows box with SOLIDWORKS actually installed, which is to say never.+///+/// Evidence, in order:+///   1. an install path or registry entry naming 3DEXPERIENCE  -> connected+///   2. the 3DEXPERIENCE Launcher present on the machine       -> connected+///   3. an install path under `SOLIDWORKS Corp` (the classic+///      desktop layout, and the ONLY positive evidence for it) -> desktop+///   4. anything else                                          -> unknown+pub fn edition_from(+    exe: Option<&str>,+    registry_versions: &[String],+    launcher_present: bool,+) -> &'static str {+    let up = exe.unwrap_or("").to_uppercase();+    let registry_says_connected = registry_versions+        .iter()+        .any(|v| v.to_uppercase().contains("3DEXPERIENCE") || v.to_uppercase().contains("CONNECTED"));+    if up.contains("3DEXPERIENCE") || registry_says_connected || launcher_present {+        return "connected";+    }+    if up.contains("SOLIDWORKS CORP") {+        return "desktop";+    }+    if exe.is_none() {+        return "unknown";+    }+    // A path we do not recognise — including `Dassault Systemes\...` without any+    // other marker, which is where the Connected editions live. Not proof of+    // either, so: unknown, which means "do not launch".+    "unknown"+}++/// How this bridge may start SOLIDWORKS.+///+/// LIVE FINDING (2026-09-03) — THE LAUNCH ANSWER. The earlier conclusion that+/// SOLIDWORKS Connected "cannot be launched programmatically" was drawn from the+/// wrong experiment: we called `CoCreateInstance` on `SldWorks.Application`,+/// which starts `sldworks.exe` DIRECTLY, and the application correctly refused+/// because it had not been given a tenant or a registry to talk to. Reading the+/// Start-Menu shortcut the Platform installs shows what the sanctioned start+/// actually is, and it is not sldworks.exe at all:+///+/// ```text+/// CATSTART.exe -run "SWXDesktopLauncher.exe"+///              -object "--AppName=\"SWXCSWK_AP\" -tenant=<TENANT> -monoapp+///                       -3DRegistryURL=https://<region>-makers-registry.3dexperience.3ds.com"+///              -nowindow+/// ```+///+/// So the refusal was ours: we bypassed the launcher chain. Invoking the+/// USER'S OWN SHORTCUT runs exactly the command Dassault intends, with the+/// tenant and registry arguments the Platform baked into it — nothing is+/// reverse-engineered and no argument is invented. That is why this bridge+/// invokes the `.lnk` rather than assembling a CATSTART command line itself: the+/// shortcut is the sanctioned artefact, and a hand-built command line would be a+/// guess at somebody's tenant.+#[derive(Clone, Debug, PartialEq)]+pub enum LaunchRoute {+    /// Classic desktop SOLIDWORKS: `CoCreateInstance` yields a drivable COM+    /// server on its own.+    Com,+    /// SOLIDWORKS Connected: invoke this shortcut and wait for the COM server to+    /// appear. Cold start runs minutes, not seconds.+    PlatformShortcut(String),+    /// Nothing this bridge may do — ask the user to start it.+    Blocked,+}++impl LaunchRoute {+    pub fn name(&self) -> &'static str {+        match self {+            LaunchRoute::Com => "com",+            LaunchRoute::PlatformShortcut(_) => "platformShortcut",+            LaunchRoute::Blocked => "blocked",+        }+    }+}++/// The route decision as a PURE function, so every branch is reachable from a+/// test on any host.+///+/// `installed` is deliberately NOT required for the shortcut route: a shortcut+/// that exists IS evidence of an install, and the exe globs miss the Connected+/// layouts often enough that requiring both would refuse launches on exactly the+/// machines this route exists for.+pub fn launch_route_from(+    installed: bool,+    edition: &'static str,+    shortcut: Option<&str>,+) -> LaunchRoute {+    // A positively-identified desktop install attaches directly, which is+    // faster and needs no external process. Prefer it.+    if installed && edition == "desktop" {+        return LaunchRoute::Com;+    }+    match shortcut.filter(|s| !s.is_empty()) {+        Some(s) => LaunchRoute::PlatformShortcut(s.to_string()),+        None => LaunchRoute::Blocked,+    }+}++/// An explicit override, for a machine whose shortcut lives somewhere these+/// globs do not look. Also how the Linux test suite drives the shortcut route.+pub const ENV_SHORTCUT: &str = "SWX_SOLIDWORKS_SHORTCUT";++/// Folders the Platform puts its Start-Menu group in. The `*` matches the+/// release component (`... 3DEXPERIENCE R2026x`).+pub const SHORTCUT_DIR_GLOBS: &[&str] = &[+    r"%ProgramData%\Microsoft\Windows\Start Menu\Programs\Dassault Systemes SOLIDWORKS 3DEXPERIENCE*",+    r"%APPDATA%\Microsoft\Windows\Start Menu\Programs\Dassault Systemes SOLIDWORKS 3DEXPERIENCE*",+    r"%ProgramData%\Microsoft\Windows\Start Menu\Programs\Dassault Systemes SOLIDWORKS*",+    r"%APPDATA%\Microsoft\Windows\Start Menu\Programs\Dassault Systemes SOLIDWORKS*",+];++/// Individual shortcuts, checked before the folder scan. The Platform also+/// offers to drop one on the desktop, and the refusal modal names it+/// ("...or from the desktop shortcut created from the Platform").+pub const SHORTCUT_FILE_GLOBS: &[&str] = &[+    r"%ProgramData%\Microsoft\Windows\Start Menu\Programs\Dassault Systemes SOLIDWORKS 3DEXPERIENCE*\SOLIDWORKS Design.lnk",+    r"%APPDATA%\Microsoft\Windows\Start Menu\Programs\Dassault Systemes SOLIDWORKS 3DEXPERIENCE*\SOLIDWORKS Design.lnk",+    r"%USERPROFILE%\Desktop\SOLIDWORKS Design.lnk",+    r"%PUBLIC%\Desktop\SOLIDWORKS Design.lnk",+];++/// Names in the Start-Menu group that are NOT the application. Launching one of+/// these would run an uninstaller or a side tool — so the ranking rejects rather+/// than guesses, and `Blocked` (which asks the user) is the fallback.+const NOT_THE_APP: &[&str] = &[+    "uninstall", "installation", "install manager", "readme", "release notes", "license",+    "administrat", "rx", "explorer", "toolbox", "settings", "manage", "utilit", "sldim",+    "composer", "visualize", "electrical", "inspection", "pdm", "simulation", "documentation",+    "help", "what's new", "tutorial", "check", "task scheduler", "language",+];++/// Which of several candidate shortcuts is the one that starts SOLIDWORKS.+///+/// Pure and ranked rather than "first match": a Start-Menu group holds an+/// uninstaller and a pile of side tools alongside the application, and picking+/// the wrong one would run the wrong program on somebody's machine.+pub fn pick_shortcut(candidates: &[String]) -> Option<String> {+    let score = |p: &String| -> Option<i32> {+        let file = p.rsplit(|c| c == '\\' || c == '/').next().unwrap_or("").to_lowercase();+        if !file.ends_with(".lnk") {+            return None;+        }+        let stem = file.trim_end_matches(".lnk");+        if !stem.contains("solidworks") {+            return None;+        }+        if NOT_THE_APP.iter().any(|bad| stem.contains(bad)) {+            return None;+        }+        // Exact, then the Connected application name, then anything left —+        // shorter names first, because the plain application is always the+        // shortest "SOLIDWORKS ..." entry in the group.+        Some(match stem {+            "solidworks design" => 0,+            "solidworks" => 1,+            s if s.contains("design") => 2,+            s => 3 + s.len() as i32,+        })+    };+    candidates+        .iter()+        .filter_map(|c| score(c).map(|s| (s, c)))+        .min_by(|a, b| a.0.cmp(&b.0).then_with(|| a.1.cmp(b.1)))+        .map(|(_, c)| c.clone())+}++/// Find the shortcut that starts SOLIDWORKS Connected, if there is one.+pub fn find_shortcut() -> Option<String> {+    if let Ok(explicit) = std::env::var(ENV_SHORTCUT) {+        if !explicit.is_empty() {+            // An explicit override is honoured whether or not it exists yet, so+            // a wrong value fails loudly at launch instead of silently falling+            // back to a different shortcut.+            return Some(explicit);+        }+    }+    let mut candidates: Vec<String> =+        SHORTCUT_FILE_GLOBS.iter().flat_map(|g| expand_glob(g)).collect();+    if let Some(found) = pick_shortcut(&candidates) {+        return Some(found);+    }+    // Nothing at the known names: scan the group folder itself.+    for dir_glob in SHORTCUT_DIR_GLOBS {+        for dir in expand_dir_glob(dir_glob) {+            if let Ok(entries) = std::fs::read_dir(&dir) {+                for e in entries.flatten() {+                    candidates.push(e.path().to_string_lossy().to_string());+                }+            }+        }+    }+    pick_shortcut(&candidates)+}++/// [`expand_glob`] for a pattern whose final component is a DIRECTORY.+/// `expand_glob` requires the resolved candidate to be a file, so it cannot+/// answer "which release folder is on this machine".+pub fn expand_dir_glob(pattern: &str) -> Vec<String> {+    let expanded = expand_env(pattern);+    let sep = |c: char| c == '\\' || c == '/';+    let star = match expanded.find('*') {+        None => {+            return if std::path::Path::new(&expanded).is_dir() { vec![expanded] } else { vec![] }+        }+        Some(i) => i,+    };+    let (head, tail) = (&expanded[..star], &expanded[star + 1..]);+    if tail.contains(|c| sep(c)) {+        return Vec::new(); // one wildcard component, and it is the last one+    }+    let (parent, prefix) = match head.rfind(sep) {+        Some(i) => (&head[..i], &head[i + 1..]),+        None => ("", head),+    };+    let mut hits = Vec::new();+    if let Ok(entries) = std::fs::read_dir(if parent.is_empty() { "." } else { parent }) {+        for e in entries.flatten() {+            if !e.path().is_dir() {+                continue;+            }+            let name = e.file_name().to_string_lossy().to_lowercase();+            if name.starts_with(&prefix.to_lowercase())+                && name.ends_with(&tail.to_lowercase())+                && name.len() >= prefix.len() + tail.len()+            {+                hits.push(e.path().to_string_lossy().to_string());+            }+        }+    }+    hits.sort();+    hits+}++/// Where the 3DEXPERIENCE Launcher lands. Its presence means this machine is+/// set up for the Connected editions whatever the SOLIDWORKS path looks like.+pub const LAUNCHER_GLOBS: &[&str] = &[+    r"%ProgramFiles%\Dassault Systemes\3DEXPERIENCE Launcher",+    r"%LOCALAPPDATA%\3DEXPERIENCE Launcher",+    r"%ProgramFiles(x86)%\Dassault Systemes\3DEXPERIENCE Launcher",+];++/// Is any of the launcher locations present?+pub fn launcher_present() -> bool {+    LAUNCHER_GLOBS.iter().any(|g| std::path::Path::new(&expand_env(g)).exists())+}++/// One detection pass. Cheap enough to run on every `swx_status`.+pub fn detect() -> Detection {+    #[cfg(windows)]+    {+        windows_impl::detect()+    }+    #[cfg(not(windows))]+    {+        // SOLIDWORKS is Windows-only; on any other host the honest answer is+        // "not installed", and the bridge runs its mock backend.+        //+        // `find_shortcut` is still called: it honours SWX_SOLIDWORKS_SHORTCUT,+        // which is how the Linux suite reaches the PlatformShortcut branch. A+        // branch that only a Windows machine with SOLIDWORKS on it can enter is+        // a branch nothing tests.+        Detection { shortcut: find_shortcut(), ..Detection::default() }+    }+}++/// Known install-path shapes. `*` matches exactly one path component (the+/// year-versioned folder SOLIDWORKS Corp uses).+pub const CANDIDATE_GLOBS: &[&str] = &[+    r"%ProgramFiles%\SOLIDWORKS Corp\SOLIDWORKS\SLDWORKS.exe",+    r"%ProgramFiles%\SOLIDWORKS Corp\*\SOLIDWORKS\SLDWORKS.exe",+    r"%ProgramFiles%\Dassault Systemes\SOLIDWORKS\SLDWORKS.exe",+    // 3DEXPERIENCE SOLIDWORKS Connected installs under the 3DEXPERIENCE launcher:+    r"%ProgramFiles%\Dassault Systemes\SOLIDWORKS 3DEXPERIENCE*\SOLIDWORKS\SLDWORKS.exe",+    r"%ProgramFiles%\Dassault Systemes\*\SOLIDWORKS\SLDWORKS.exe",+];++/// Expand `%VAR%` references; an undefined variable expands to itself so the+/// resulting path simply fails to exist instead of silently matching `\`.+pub fn expand_env(pattern: &str) -> String {+    let mut out = String::new();+    let mut rest = pattern;+    while let Some(start) = rest.find('%') {+        out.push_str(&rest[..start]);+        let after = &rest[start + 1..];+        match after.find('%') {+            Some(end) => {+                let name = &after[..end];+                match std::env::var(name) {+                    Ok(v) => out.push_str(&v),+                    Err(_) => {+                        out.push('%');+                        out.push_str(name);+                        out.push('%');+                    }+                }+                rest = &after[end + 1..];+            }+            None => {+                out.push('%');+                out.push_str(after);+                rest = "";+            }+        }+    }+    out.push_str(rest);+    out+}++/// Resolve one candidate pattern to existing files. Supports at most one `*`+/// component — which is all the SOLIDWORKS layouts need, and keeps a glob crate+/// out of the dependency list.+pub fn expand_glob(pattern: &str) -> Vec<String> {+    let expanded = expand_env(pattern);+    let star = match expanded.find('*') {+        None => {+            return if std::path::Path::new(&expanded).is_file() { vec![expanded] } else { vec![] }+        }+        Some(i) => i,+    };+    // The `*` lives inside ONE path component, which may also carry a literal+    // prefix and/or suffix (e.g. `SOLIDWORKS 3DEXPERIENCE*` matches+    // `SOLIDWORKS 3DEXPERIENCE R2026x`). Split the pattern at the component+    // boundaries around the star, then match directory names by prefix/suffix.+    let head = &expanded[..star];+    let tail = &expanded[star + 1..];+    let sep = |c: char| c == '\\' || c == '/';+    let (parent, name_prefix) = match head.rfind(sep) {+        Some(i) => (&head[..i], &head[i + 1..]),+        None => ("", head),+    };+    let (name_suffix, rest) = match tail.find(sep) {+        Some(i) => (&tail[..i], tail[i + 1..].to_string()),+        None => (tail, String::new()),+    };+    let mut hits = Vec::new();+    if let Ok(entries) = std::fs::read_dir(if parent.is_empty() { "." } else { parent }) {+        for e in entries.flatten() {+            if !e.path().is_dir() {+                continue;+            }+            let name = e.file_name().to_string_lossy().to_string();+            // Case-insensitive: Windows paths are, and the installers are inconsistent.+            let (lname, lpre, lsuf) = (+                name.to_lowercase(),+                name_prefix.to_lowercase(),+                name_suffix.to_lowercase(),+            );+            if !lname.starts_with(&lpre)+                || !lname.ends_with(&lsuf)+                || lname.len() < lpre.len() + lsuf.len()+            {+                continue;+            }+            let candidate = if rest.is_empty() {+                e.path()+            } else {+                e.path().join(rest.replace('\\', std::path::MAIN_SEPARATOR_STR))+            };+            if candidate.is_file() {+                hits.push(candidate.to_string_lossy().to_string());+            }+        }+    }+    hits.sort();+    hits+}++#[cfg(windows)]+mod windows_impl {+    use super::{expand_glob, Detection, CANDIDATE_GLOBS};+    use std::os::windows::process::CommandExt;+    use winreg::enums::{HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE};+    use winreg::RegKey;++    const APP_PATHS: &str =+        r"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\SLDWORKS.exe";+    const CREATE_NO_WINDOW: u32 = 0x0800_0000;++    /// The App Paths key — the most reliable signal when it is present.+    fn app_paths_lookup() -> Option<String> {+        for root in [HKEY_LOCAL_MACHINE, HKEY_CURRENT_USER] {+            let hive = RegKey::predef(root);+            if let Ok(key) = hive.open_subkey(APP_PATHS) {+                if let Ok(path) = key.get_value::<String, _>("") {+                    if std::path::Path::new(&path).is_file() {+                        return Some(path);+                    }+                }+            }+        }+        None+    }++    /// `HKLM\SOFTWARE\SolidWorks\SOLIDWORKS <year>` subkeys.+    fn registry_versions() -> Vec<String> {+        let hive = RegKey::predef(HKEY_LOCAL_MACHINE);+        let mut out = Vec::new();+        if let Ok(key) = hive.open_subkey(r"SOFTWARE\SolidWorks") {+            for name in key.enum_keys().flatten() {+                if name.to_uppercase().starts_with("SOLIDWORKS ") {+                    out.push(name);+                }+            }+        }+        out+    }++    fn is_running() -> bool {+        std::process::Command::new("tasklist")+            .args(["/FI", "IMAGENAME eq SLDWORKS.exe", "/FO", "CSV", "/NH"])+            .creation_flags(CREATE_NO_WINDOW)+            .output()+            .map(|o| String::from_utf8_lossy(&o.stdout)+                .to_ascii_lowercase()+                .contains("sldworks.exe"))   // tasklist prints lowercase++            .unwrap_or(false)+    }++    pub fn detect() -> Detection {+        let mut exe = app_paths_lookup();+        if exe.is_none() {+            for pattern in CANDIDATE_GLOBS {+                let hits = expand_glob(pattern);+                if let Some(last) = hits.last() {+                    exe = Some(last.clone());+                    break;+                }+            }+        }+        Detection {+            installed: exe.is_some(),+            exe,+            registry_versions: registry_versions(),+            running: is_running(),+            launcher_present: super::launcher_present(),+            shortcut: super::find_shortcut(),+        }+    }+}++#[cfg(test)]+mod tests {+    use super::*;++    #[test]+    fn the_launch_route_prefers_com_but_falls_back_to_the_platform_shortcut() {+        // THE LAUNCH ANSWER, as a decision table. A positively-identified+        // desktop install attaches over COM; anything else launches through the+        // shortcut the Platform installed, IF there is one; and only the absence+        // of a shortcut blocks.+        let lnk = r"C:\ProgramData\...\SOLIDWORKS Design.lnk";+        assert_eq!(launch_route_from(true, "desktop", None), LaunchRoute::Com);+        assert_eq!(+            launch_route_from(true, "desktop", Some(lnk)),+            LaunchRoute::Com,+            "a desktop install attaches directly rather than running an external process"+        );+        // The case this whole route exists for.+        assert_eq!(+            launch_route_from(true, "connected", Some(lnk)),+            LaunchRoute::PlatformShortcut(lnk.to_string()),+            "SOLIDWORKS Connected CAN be started — through the launcher chain in its shortcut"+        );+        // `installed` is deliberately not required: the exe globs miss the+        // Connected layouts, and a shortcut IS evidence of an install.+        assert_eq!(+            launch_route_from(false, "unknown", Some(lnk)),+            LaunchRoute::PlatformShortcut(lnk.to_string())+        );+        // Blocked ONLY when there is nothing sanctioned to invoke.+        assert_eq!(launch_route_from(true, "connected", None), LaunchRoute::Blocked);+        assert_eq!(launch_route_from(false, "unknown", None), LaunchRoute::Blocked);+        assert_eq!(+            launch_route_from(true, "connected", Some("")),+            LaunchRoute::Blocked,+            "an empty shortcut string is not a shortcut"+        );+    }++    #[test]+    fn the_shortcut_ranking_never_picks_the_uninstaller() {+        // A Start-Menu group holds the application next to an uninstaller and a+        // pile of side tools. "First .lnk found" would run whichever the+        // filesystem happened to list first — on somebody's machine.+        let group = |n: &str| format!(r"C:\ProgramData\MS\Start Menu\Programs\DS SW 3DX\{n}");+        let candidates: Vec<String> = [+            "Uninstall SOLIDWORKS.lnk",+            "SOLIDWORKS Rx 2026.lnk",+            "SOLIDWORKS Tools.lnk",+            "SOLIDWORKS Design.lnk",+            "SOLIDWORKS Visualize.lnk",+        ]+        .iter()+        .map(|n| group(n))+        .collect();+        assert_eq!(+            pick_shortcut(&candidates),+            Some(group("SOLIDWORKS Design.lnk")),+            "the application, not a tool and certainly not the uninstaller"+        );++        // Nothing recognisable: None, so the caller asks the user rather than+        // running something arbitrary.+        let junk: Vec<String> =+            ["Uninstall SOLIDWORKS.lnk", "SOLIDWORKS Rx.lnk", "readme.txt", "Notepad.lnk"]+                .iter()+                .map(|n| group(n))+                .collect();+        assert_eq!(+            pick_shortcut(&junk),+            None,+            "no application shortcut is 'blocked', which asks the user — never a guess"+        );+        // Non-.lnk files in the folder are not launch candidates.+        assert_eq!(pick_shortcut(&[group("SOLIDWORKS Design.exe")]), None);+        // The plain name is accepted when that is what the group calls it.+        assert_eq!(+            pick_shortcut(&[group("SOLIDWORKS.lnk")]),+            Some(group("SOLIDWORKS.lnk"))+        );+    }++    #[test]+    fn the_release_folder_is_found_by_wildcard() {+        // `expand_glob` requires the resolved candidate to be a FILE, so it+        // cannot answer "which release folder does this machine have".+        let tmp = std::env::temp_dir().join(format!("swx-dirglob-{}", std::process::id()));+        let _ = std::fs::remove_dir_all(&tmp);+        std::fs::create_dir_all(tmp.join("Dassault Systemes SOLIDWORKS 3DEXPERIENCE R2026x")).unwrap();+        std::fs::create_dir_all(tmp.join("Something Else")).unwrap();+        let hits = expand_dir_glob(&format!(+            "{}/Dassault Systemes SOLIDWORKS 3DEXPERIENCE*",+            tmp.display()+        ));+        assert_eq!(hits.len(), 1, "matched {hits:?}");+        assert!(hits[0].ends_with("R2026x"));+        assert!(expand_dir_glob(&format!("{}/Nope*", tmp.display())).is_empty());+        let _ = std::fs::remove_dir_all(&tmp);+    }++    #[test]+    fn the_edition_decision_covers_both_real_install_layouts() {+        let none: Vec<String> = vec![];+        // The machine this bridge was built against: SOLIDWORKS Design+        // Professional for Makers 2026, whose registry version string is the+        // UNREMARKABLE "SOLIDWORKS 2026" — the path is what gives it away.+        assert_eq!(+            edition_from(+                Some(r"C:\Program Files\Dassault Systemes\SOLIDWORKS 3DEXPERIENCE R2026x\SOLIDWORKS\SLDWORKS.exe"),+                &["SOLIDWORKS 2026".to_string()],+                false,+            ),+            "connected"+        );+        // Classic desktop layout — the ONLY thing that earns a launch.+        assert_eq!(+            edition_from(+                Some(r"C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\SLDWORKS.exe"),+                &none,+                false,+            ),+            "desktop"+        );+        // ...and the launcher's presence overrides even that, because a machine+        // with the 3DEXPERIENCE Launcher on it is a Connected machine.+        assert_eq!(+            edition_from(Some(r"C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\SLDWORKS.exe"), &none, true),+            "connected"+        );+        // A registry entry naming 3DEXPERIENCE is signal on its own.+        assert_eq!(+            edition_from(Some(r"C:\somewhere\SLDWORKS.exe"), &["SOLIDWORKS 3DEXPERIENCE R2026x".to_string()], false),+            "connected"+        );+        // An unrecognised path is UNKNOWN, not "desktop". This is the bit that+        // matters: the previous version answered "desktop" for anything without+        // 3DEXPERIENCE in it, so a layout nobody had seen would have fired the+        // COM launch that produces the refusal modal.+        assert_eq!(edition_from(Some(r"C:\Program Files\Dassault Systemes\SOLIDWORKS\SLDWORKS.exe"), &none, false), "unknown");+        assert_eq!(edition_from(Some(r"D:\weird\SLDWORKS.exe"), &none, false), "unknown");+        assert_eq!(edition_from(None, &none, false), "unknown");+    }++    #[test]+    fn only_a_positively_identified_desktop_install_may_be_launched() {+        let d = |exe: Option<&str>, launcher: bool| Detection {+            installed: exe.is_some(),+            shortcut: None,+            exe: exe.map(String::from),+            registry_versions: vec![],+            running: false,+            launcher_present: launcher,+        };+        assert!(d(Some(r"C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\SLDWORKS.exe"), false).can_launch());+        // Connected: never.+        assert!(!d(Some(r"C:\Program Files\Dassault Systemes\SOLIDWORKS 3DEXPERIENCE R2026x\SOLIDWORKS\SLDWORKS.exe"), false).can_launch());+        // Unknown: never. Refusing a launch we could have made costs one+        // sentence; making one we should have refused costs the user a modal+        // dialog and a dead process.+        assert!(!d(Some(r"D:\weird\SLDWORKS.exe"), false).can_launch());+        // Not installed at all: never.+        assert!(!d(None, false).can_launch());+        // ...and the JSON a caller branches on carries both facts.+        let j = d(Some(r"C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\SLDWORKS.exe"), false).to_json();+        assert_eq!(j["edition"], "desktop");+        assert_eq!(j["canLaunchProgrammatically"], true);+    }++    #[test]+    fn env_expansion_keeps_unknown_vars_literal() {+        // No set_var here: mutating the process environment races every other+        // test thread (get_var/set_var is not thread-safe), which is UB. Read a+        // variable cargo always sets for the test process instead.+        let known = "CARGO_PKG_NAME";+        let expected = std::env::var(known).unwrap();+        assert_eq!(expand_env(&format!("%{known}%/x.exe")), format!("{expected}/x.exe"));+        assert_eq!(expand_env(r"%NO_SUCH_VAR_XYZ%\x"), r"%NO_SUCH_VAR_XYZ%\x");+        assert_eq!(expand_env("plain"), "plain");+        assert_eq!(expand_env("no percent at all"), "no percent at all");+    }++    #[test]+    fn glob_matches_one_wildcard_component() {+        let base = std::env::temp_dir().join(format!("swx-glob-{}", std::process::id()));+        let deep = base.join("2026").join("SOLIDWORKS");+        std::fs::create_dir_all(&deep).unwrap();+        let exe = deep.join("SLDWORKS.exe");+        std::fs::write(&exe, b"x").unwrap();+        let pattern = format!("{}/*/SOLIDWORKS/SLDWORKS.exe", base.display());+        let hits = expand_glob(&pattern);+        assert_eq!(hits.len(), 1, "{hits:?}");+        assert!(hits[0].contains("SLDWORKS.exe"));+        // an exact path that does not exist yields nothing+        assert!(expand_glob(&format!("{}/nope.exe", base.display())).is_empty());+        let _ = std::fs::remove_dir_all(&base);+    }++    #[test]+    fn non_windows_detection_is_honest() {+        let d = detect();+        if !cfg!(windows) {+            assert!(!d.installed);+            assert_eq!(d.to_json()["platform"], std::env::consts::OS);+        }+    }+}++#[cfg(test)]+mod live_regression_tests {+    use super::expand_glob;++    /// A wildcard INSIDE a component (the real 3DEXPERIENCE layout:+    /// `SOLIDWORKS 3DEXPERIENCE R2026x`). This is what failed on Drew's live+    /// install: the old splitter looked for a dir literally named+    /// `SOLIDWORKS 3DEXPERIENCE`.+    #[test]+    fn partial_component_wildcard_matches_versioned_dir() {+        let tmp = std::env::temp_dir().join(format!("swxglob{}", std::process::id()));+        let dir = tmp.join("SOLIDWORKS 3DEXPERIENCE R2026x").join("SOLIDWORKS");+        std::fs::create_dir_all(&dir).unwrap();+        let exe = dir.join("SLDWORKS.exe");+        std::fs::write(&exe, b"x").unwrap();+        let pat = format!("{}/SOLIDWORKS 3DEXPERIENCE*/SOLIDWORKS/SLDWORKS.exe", tmp.display());+        let hits = expand_glob(&pat);+        assert_eq!(hits.len(), 1, "expected the versioned dir to match: {hits:?}");+        assert!(hits[0].to_lowercase().contains("r2026x"));+        // A prefix that does not match must not match anything.+        assert!(expand_glob(&format!("{}/NOPE*/SOLIDWORKS/SLDWORKS.exe", tmp.display())).is_empty());+        std::fs::remove_dir_all(&tmp).ok();+    }+}
src/findfiles.rsadded+315
@@ -0,0 +1,315 @@+//! `swx_find_files` — a disk search for SOLIDWORKS documents.+//!+//! Deliberately independent of COM: this verb answers "what do I have?" with+//! SOLIDWORKS closed, not installed, or mid-trial. It is the first step of the+//! everyday flow, so it must never depend on the app being up.+//!+//! What it skips, and why: `~$…` files (SOLIDWORKS lock/temp shadows of open+//! documents — offering one as a path is a trap), dot- and `$`-prefixed+//! directories (VCS metadata, `$RECYCLE.BIN`, `$WINDOWS.~BT`), and+//! `node_modules` (huge, never CAD).++use std::cmp::Reverse;+use std::collections::BinaryHeap;+use std::path::PathBuf;+use std::time::{Duration, Instant, UNIX_EPOCH};++/// `.ext` -> the `type` string a hit carries. The one place the mapping lives.+pub const SW_EXTENSIONS: &[(&str, &str)] = crate::comhost::mock::DOC_TYPES;++#[derive(Debug, Clone)]+pub struct Hit {+    pub path: String,+    pub name: String,+    pub kind: &'static str,+    pub bytes: u64,+    pub modified: i64,+}++impl Hit {+    pub fn to_json(&self) -> serde_json::Value {+        serde_json::json!({+            "path": self.path,+            "name": self.name,+            "type": self.kind,+            "bytes": self.bytes,+            "modified": self.modified,+        })+    }+}++/// Map a `types:[...]` filter ("part"/"assembly"/"drawing") to extensions.+/// An empty or unrecognized filter means "all SOLIDWORKS documents" — matching+/// the Python behaviour (an empty list was falsy → all) and this function's own+/// contract, which the previous version quietly contradicted by returning [].+pub fn wanted_extensions(types: Option<&[String]>) -> Vec<&'static str> {+    let all = || SW_EXTENSIONS.iter().map(|(e, _)| *e).collect::<Vec<_>>();+    match types {+        None => all(),+        Some(list) => {+            let picked: Vec<&'static str> = SW_EXTENSIONS+                .iter()+                .filter(|(_, t)| list.iter().any(|w| w.eq_ignore_ascii_case(t)))+                .map(|(e, _)| *e)+                .collect();+            if picked.is_empty() {+                all()+            } else {+                picked+            }+        }+    }+}++fn skip_dir(name: &str) -> bool {+    name.starts_with('.') || name.starts_with('$') || name.eq_ignore_ascii_case("node_modules")+}++/// Walk `roots`, newest first. Returns (hits, truncated) — truncated is true+/// when `limit` or the time budget cut the walk short, so the caller can say so+/// instead of quietly lying about completeness.+pub fn search(+    roots: &[String],+    want: &[&'static str],+    query: &str,+    limit: usize,+    budget: Duration,+) -> (Vec<Hit>, bool) {+    let query = query.to_lowercase();+    let started = Instant::now();+    let mut truncated = false;++    // Keep only the `limit` NEWEST matches as we walk, in a bounded min-heap+    // keyed by (mtime, path): O(limit) memory, not O(total matches), while still+    // giving correct newest-first ordering — the naive "collect all, sort,+    // truncate" bought correctness at the cost of buffering an entire disk of+    // CAD files. The min-heap's smallest element is the oldest survivor, so once+    // we are at capacity every further match is compared against it and the+    // loser is dropped. `matched` counts everything seen so truncation is honest.+    let mut heap: BinaryHeap<Reverse<HeapHit>> = BinaryHeap::with_capacity(limit + 1);+    let mut matched: usize = 0;++    'roots: for root in roots {+        let root_path = PathBuf::from(root);+        if !root_path.is_dir() {+            continue;+        }+        let mut stack = vec![root_path];+        while let Some(dir) = stack.pop() {+            if started.elapsed() > budget {+                truncated = true;+                break 'roots;+            }+            let entries = match std::fs::read_dir(&dir) {+                Ok(e) => e,+                Err(_) => continue, // unreadable dir: skip it, never fail the verb+            };+            for entry in entries.flatten() {+                let name = entry.file_name().to_string_lossy().to_string();+                let file_type = match entry.file_type() {+                    Ok(t) => t,+                    Err(_) => continue,+                };+                if file_type.is_dir() {+                    if !skip_dir(&name) {+                        stack.push(entry.path());+                    }+                    continue;+                }+                let lower = name.to_lowercase();+                let kind = match SW_EXTENSIONS+                    .iter()+                    .find(|(ext, _)| lower.ends_with(ext) && want.contains(ext))+                {+                    Some((_, k)) => *k,+                    None => continue,+                };+                if name.starts_with("~$") {+                    continue;+                }+                if !query.is_empty() && !lower.contains(&query) {+                    continue;+                }+                let meta = match entry.metadata() {+                    Ok(m) => m,+                    Err(_) => continue,+                };+                let modified = meta+                    .modified()+                    .ok()+                    .and_then(|t| t.duration_since(UNIX_EPOCH).ok())+                    .map(|d| d.as_secs() as i64)+                    .unwrap_or(0);+                matched += 1;+                let hit = Hit {+                    path: entry.path().to_string_lossy().to_string(),+                    name,+                    kind,+                    bytes: meta.len(),+                    modified,+                };+                heap.push(Reverse(HeapHit(hit)));+                if heap.len() > limit {+                    // Drop the current oldest — it cannot be in the newest `limit`.+                    heap.pop();+                }+            }+        }+    }+    if matched > heap.len() {+        truncated = true; // more matched than we returned — say so+    }+    let mut hits: Vec<Hit> = heap.into_iter().map(|Reverse(h)| h.0).collect();+    hits.sort_by(|a, b| b.modified.cmp(&a.modified));+    (hits, truncated)+}++/// A `Hit` ordered by (modified, path) — a TOTAL order so the min-heap that+/// keeps the newest matches is deterministic across equal mtimes.+struct HeapHit(Hit);++impl PartialEq for HeapHit {+    fn eq(&self, other: &Self) -> bool {+        self.cmp(other) == std::cmp::Ordering::Equal+    }+}+impl Eq for HeapHit {}+impl PartialOrd for HeapHit {+    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {+        Some(self.cmp(other))+    }+}+impl Ord for HeapHit {+    fn cmp(&self, other: &Self) -> std::cmp::Ordering {+        self.0+            .modified+            .cmp(&other.0.modified)+            .then_with(|| self.0.path.cmp(&other.0.path))+    }+}++#[cfg(test)]+mod tests {+    use super::*;++    struct Tmp(PathBuf);+    impl Drop for Tmp {+        fn drop(&mut self) {+            let _ = std::fs::remove_dir_all(&self.0);+        }+    }++    fn fixture(tag: &str, names: &[&str]) -> Tmp {+        let dir = std::env::temp_dir().join(format!("swx-ff-{}-{tag}", std::process::id()));+        let _ = std::fs::remove_dir_all(&dir);+        std::fs::create_dir_all(&dir).unwrap();+        for n in names {+            let p = dir.join(n);+            if let Some(parent) = p.parent() {+                std::fs::create_dir_all(parent).unwrap();+            }+            std::fs::write(p, b"x").unwrap();+        }+        Tmp(dir)+    }++    fn paths(hits: &[Hit]) -> Vec<String> {+        hits.iter().map(|h| h.name.clone()).collect()+    }++    #[test]+    fn finds_documents_and_skips_lock_files_and_noise() {+        let t = fixture("basic", &["a.sldprt", "b.sldasm", "~$b.sldasm", "c.txt"]);+        let want = wanted_extensions(None);+        let (hits, truncated) =+            search(&[t.0.to_string_lossy().to_string()], &want, "", 200, Duration::from_secs(5));+        assert_eq!(hits.len(), 2, "{:?}", paths(&hits));+        assert!(!truncated);+    }++    #[test]+    fn honors_type_filter_query_and_limit() {+        let t = fixture("filters", &["alpha.sldprt", "beta.sldasm", "gamma.slddrw"]);+        let root = vec![t.0.to_string_lossy().to_string()];++        let want = wanted_extensions(Some(&["assembly".to_string()]));+        let (hits, _) = search(&root, &want, "", 200, Duration::from_secs(5));+        assert_eq!(hits.len(), 1);+        assert_eq!(hits[0].kind, "assembly");++        let all = wanted_extensions(None);+        let (hits, _) = search(&root, &all, "alph", 200, Duration::from_secs(5));+        assert_eq!(paths(&hits), vec!["alpha.sldprt"]);++        let (hits, truncated) = search(&root, &all, "", 2, Duration::from_secs(5));+        assert_eq!(hits.len(), 2);+        assert!(truncated, "hitting the limit must be reported, not hidden");+    }++    #[test]+    fn descends_into_subdirs_but_not_into_dot_dollar_or_node_modules() {+        let t = fixture(+            "walk",+            &[+                "sub/deep.sldprt",+                ".git/hidden.sldprt",+                "$RECYCLE.BIN/trash.sldprt",+                "node_modules/pkg.sldprt",+            ],+        );+        let want = wanted_extensions(None);+        let (hits, _) =+            search(&[t.0.to_string_lossy().to_string()], &want, "", 200, Duration::from_secs(5));+        assert_eq!(paths(&hits), vec!["deep.sldprt"]);+    }++    #[test]+    fn newest_first_survives_the_limit_even_across_subdirs() {+        // The regression this guards: the newest file lives in a subdir the walk+        // reaches LAST, and the limit is smaller than the total. It must still be+        // returned — truncation happens after the mtime sort, not during the walk.+        let t = fixture("newest", &["old1.sldprt", "old2.sldprt", "deep/newest.sldprt"]);+        let set_mtime = |rel: &str, secs: u64| {+            let f = std::fs::OpenOptions::new().write(true).open(t.0.join(rel)).unwrap();+            f.set_modified(UNIX_EPOCH + Duration::from_secs(secs)).unwrap();+        };+        set_mtime("old1.sldprt", 1_000);+        set_mtime("old2.sldprt", 2_000);+        set_mtime("deep/newest.sldprt", 9_000);++        let want = wanted_extensions(None);+        let (hits, truncated) =+            search(&[t.0.to_string_lossy().to_string()], &want, "", 1, Duration::from_secs(5));+        assert_eq!(hits.len(), 1);+        assert!(truncated);+        assert_eq!(hits[0].name, "newest.sldprt", "the newest file must win the single slot");+    }++    #[test]+    fn an_empty_or_unmatched_types_filter_means_all_documents() {+        let t = fixture("emptytypes", &["a.sldprt", "b.sldasm", "c.slddrw"]);+        let root = vec![t.0.to_string_lossy().to_string()];+        let empty: Vec<String> = vec![];+        let (hits, _) =+            search(&root, &wanted_extensions(Some(&empty)), "", 200, Duration::from_secs(5));+        assert_eq!(hits.len(), 3, "an empty types list must not filter everything out");+        let bogus = vec!["gerber".to_string()];+        let (hits, _) =+            search(&root, &wanted_extensions(Some(&bogus)), "", 200, Duration::from_secs(5));+        assert_eq!(hits.len(), 3, "an unrecognized type must fall back to all, not none");+    }++    #[test]+    fn a_missing_root_is_skipped_not_fatal() {+        let want = wanted_extensions(None);+        let (hits, truncated) = search(+            &["/no/such/place/at/all".to_string()],+            &want,+            "",+            200,+            Duration::from_secs(5),+        );+        assert!(hits.is_empty());+        assert!(!truncated);+    }+}
src/httpc.rsadded+159
@@ -0,0 +1,159 @@+//! A minimal blocking HTTP/1.1 client — loopback only, no dependencies.+//!+//! Used for exactly one thing in production: calling ab back on its direct API+//! (`swx_screenshot` delegates to ab's generic `desktop_screenshot_window`).+//! That is one POST to 127.0.0.1 with a couple of headers, which does not+//! justify pulling an HTTP client crate into a bridge whose whole selling point+//! is being one small static binary.+//!+//! The integration tests reuse it to drive the real server exactly as ab does.++use std::io::{Read, Write};+use std::net::TcpStream;+use std::time::Duration;++#[derive(Debug)]+pub struct Response {+    pub status: u16,+    pub body: String,+}++impl Response {+    /// The body parsed as JSON (an error string if it is not JSON).+    pub fn json(&self) -> Result<serde_json::Value, String> {+        serde_json::from_str(&self.body).map_err(|e| format!("not JSON ({e}): {}", self.body))+    }+}++pub fn get(url: &str, timeout: Duration) -> Result<Response, String> {+    request("GET", url, &[], None, timeout)+}++pub fn post_json(+    url: &str,+    headers: &[(String, String)],+    body: &str,+    timeout: Duration,+) -> Result<Response, String> {+    request("POST", url, headers, Some(body), timeout)+}++fn request(+    method: &str,+    url: &str,+    headers: &[(String, String)],+    body: Option<&str>,+    timeout: Duration,+) -> Result<Response, String> {+    let (host_port, path) = split_url(url)?;+    let stream = TcpStream::connect(&host_port).map_err(|e| format!("connect {host_port}: {e}"))?;+    stream.set_read_timeout(Some(timeout)).ok();+    stream.set_write_timeout(Some(timeout)).ok();+    let mut stream = stream;++    let mut req = format!("{method} {path} HTTP/1.1\r\nHost: {host_port}\r\nConnection: close\r\n");+    for (k, v) in headers {+        req.push_str(&format!("{k}: {v}\r\n"));+    }+    if let Some(b) = body {+        req.push_str("Content-Type: application/json\r\n");+        req.push_str(&format!("Content-Length: {}\r\n", b.len()));+    }+    req.push_str("\r\n");+    if let Some(b) = body {+        req.push_str(b);+    }+    stream.write_all(req.as_bytes()).map_err(|e| format!("write: {e}"))?;+    stream.flush().ok();++    let mut raw = Vec::new();+    stream.read_to_end(&mut raw).map_err(|e| format!("read: {e}"))?;+    parse_response(&raw)+}++fn split_url(url: &str) -> Result<(String, String), String> {+    let rest = url+        .strip_prefix("http://")+        .ok_or_else(|| format!("only plain http:// loopback URLs are supported: {url}"))?;+    let (host_port, path) = match rest.find('/') {+        Some(i) => (&rest[..i], &rest[i..]),+        None => (rest, "/"),+    };+    let host_port =+        if host_port.contains(':') { host_port.to_string() } else { format!("{host_port}:80") };+    Ok((host_port, path.to_string()))+}++fn parse_response(raw: &[u8]) -> Result<Response, String> {+    let split = raw+        .windows(4)+        .position(|w| w == b"\r\n\r\n")+        .ok_or_else(|| "malformed response: no header terminator".to_string())?;+    let head = String::from_utf8_lossy(&raw[..split]).to_string();+    let body_bytes = &raw[split + 4..];++    let mut lines = head.lines();+    let status_line = lines.next().unwrap_or_default();+    let status: u16 = status_line+        .split_whitespace()+        .nth(1)+        .and_then(|s| s.parse().ok())+        .ok_or_else(|| format!("malformed status line: {status_line}"))?;++    let chunked = lines.any(|l| {+        let l = l.to_ascii_lowercase();+        l.starts_with("transfer-encoding:") && l.contains("chunked")+    });+    let body = if chunked { dechunk(body_bytes) } else { body_bytes.to_vec() };+    Ok(Response { status, body: String::from_utf8_lossy(&body).to_string() })+}++fn dechunk(mut input: &[u8]) -> Vec<u8> {+    let mut out = Vec::new();+    loop {+        let nl = match input.windows(2).position(|w| w == b"\r\n") {+            Some(i) => i,+            None => break,+        };+        let size_line = String::from_utf8_lossy(&input[..nl]).to_string();+        let size = usize::from_str_radix(size_line.trim().split(';').next().unwrap_or("0"), 16)+            .unwrap_or(0);+        input = &input[nl + 2..];+        if size == 0 || input.len() < size {+            out.extend_from_slice(&input[..input.len().min(size)]);+            break;+        }+        out.extend_from_slice(&input[..size]);+        input = &input[size..];+        if input.starts_with(b"\r\n") {+            input = &input[2..];+        }+    }+    out+}++#[cfg(test)]+mod tests {+    use super::*;++    #[test]+    fn urls_split_into_authority_and_path() {+        assert_eq!(+            split_url("http://127.0.0.1:9000/command").unwrap(),+            ("127.0.0.1:9000".into(), "/command".into())+        );+        assert_eq!(split_url("http://localhost").unwrap(), ("localhost:80".into(), "/".into()));+        assert!(split_url("https://example.com").is_err());+    }++    #[test]+    fn parses_content_length_and_chunked_bodies() {+        let r = parse_response(b"HTTP/1.1 200 OK\r\nContent-Length: 2\r\n\r\nhi").unwrap();+        assert_eq!((r.status, r.body.as_str()), (200, "hi"));+        let r = parse_response(+            b"HTTP/1.1 404 Not Found\r\nTransfer-Encoding: chunked\r\n\r\n3\r\nabc\r\n0\r\n\r\n",+        )+        .unwrap();+        assert_eq!((r.status, r.body.as_str()), (404, "abc"));+    }+}
src/jobs.rsadded+139
@@ -0,0 +1,139 @@+//! Progress blocks for slow verbs.+//!+//! Two halves of one contract:+//!   * a slow verb's own response ends with a TERMINAL frame — `percent:100`+//!     plus the real `elapsedSec`, so the caller learns what the operation+//!     actually costs on this machine;+//!   * `swx_progress` returns `active[]` — the live frames of everything in+//!     flight — so an AI (or a UI) can poll ~1/s and drive a bar while a+//!     90-second interference check runs.+//!+//! A job registers on creation and deregisters on drop, so an early return or a+//! panic can never leave a phantom job pinned in `active[]`.++use serde_json::{json, Value};+use std::sync::atomic::{AtomicU64, Ordering};+use std::sync::{Arc, Mutex};+use std::time::Instant;++struct Entry {+    phase: &'static str,+    step_label: String,+    estimated_sec: u64,+    started: Instant,+}++#[derive(Default)]+pub struct Jobs {+    seq: AtomicU64,+    live: Mutex<Vec<(u64, Entry)>>,+}++impl Jobs {+    pub fn new() -> Arc<Self> {+        Arc::new(Self::default())+    }++    /// Register a job for the life of the returned guard.+    pub fn start(+        self: &Arc<Self>,+        phase: &'static str,+        step_label: impl Into<String>,+        estimated_sec: u64,+    ) -> JobGuard {+        let id = self.seq.fetch_add(1, Ordering::SeqCst) + 1;+        let started = Instant::now();+        let entry = Entry { phase, step_label: step_label.into(), estimated_sec, started };+        self.live.lock().unwrap_or_else(|e| e.into_inner()).push((id, entry));+        JobGuard { jobs: Arc::clone(self), id, started }+    }++    /// Live frames for `swx_progress`.+    pub fn active(&self) -> Vec<Value> {+        let live = self.live.lock().unwrap_or_else(|e| e.into_inner());+        live.iter()+            .map(|(_, e)| {+                let elapsed = round1(e.started.elapsed().as_secs_f64());+                json!({+                    "phase": e.phase,+                    "stepLabel": e.step_label,+                    "percent": Value::Null,+                    "elapsedSec": elapsed,+                    "estimatedSec": e.estimated_sec,+                    "etaSec": round1((e.estimated_sec as f64 - elapsed).max(0.0)),+                    "confidence": "estimate",+                    "startKind": "warm",+                })+            })+            .collect()+    }+}++pub struct JobGuard {+    jobs: Arc<Jobs>,+    id: u64,+    started: Instant,+}++impl JobGuard {+    /// The terminal frame that rides on the verb's own response.+    pub fn finished(&self) -> Value {+        let live = self.jobs.live.lock().unwrap_or_else(|e| e.into_inner());+        let (phase, label, est) = live+            .iter()+            .find(|(id, _)| *id == self.id)+            .map(|(_, e)| (e.phase, e.step_label.clone(), e.estimated_sec))+            .unwrap_or(("unknown", String::new(), 0));+        json!({+            "phase": phase,+            "stepLabel": label,+            "percent": 100,+            "elapsedSec": round1(self.started.elapsed().as_secs_f64()),+            "estimatedSec": est,+            "etaSec": 0,+            "confidence": "estimate",+            "startKind": "warm",+        })+    }+}++impl Drop for JobGuard {+    fn drop(&mut self) {+        let mut live = self.jobs.live.lock().unwrap_or_else(|e| e.into_inner());+        live.retain(|(id, _)| *id != self.id);+    }+}++fn round1(v: f64) -> f64 {+    (v * 10.0).round() / 10.0+}++#[cfg(test)]+mod tests {+    use super::*;++    #[test]+    fn a_job_is_active_only_while_it_lives() {+        let jobs = Jobs::new();+        assert!(jobs.active().is_empty());+        {+            let g = jobs.start("export", "Exporting STEP", 45);+            let active = jobs.active();+            assert_eq!(active.len(), 1);+            assert_eq!(active[0]["phase"], "export");+            assert_eq!(active[0]["percent"], Value::Null);+            assert_eq!(g.finished()["percent"], 100);+            assert_eq!(g.finished()["etaSec"], 0);+        }+        assert!(jobs.active().is_empty(), "the guard must deregister on drop");+    }++    #[test]+    fn finished_reports_the_label_and_estimate() {+        let jobs = Jobs::new();+        let g = jobs.start("bom", "Walking assembly components", 60);+        let f = g.finished();+        assert_eq!(f["stepLabel"], "Walking assembly components");+        assert_eq!(f["estimatedSec"], 60);+    }+}
src/ledger.rsadded+222
@@ -0,0 +1,222 @@+//! The background-action ledger and the measured verb-timing store.+//!+//! Two facts a user needs about a bridge that drives their live CAD session+//! while they are not watching:+//!+//!   * **What did it do on its own?** Every document this bridge created, every+//!     scratch document it swept, every dialog it closed, every com-host respawn+//!     lands in an append-only ledger (`ledger.jsonl` in the scratch root) that+//!     `swx_action_ledger` reads back. Fusion calls this the quietness audit+//!     log; the shape is the same: `{at, action, detail}`.+//!   * **What does this machine actually cost?** Every slow verb records its+//!     duration in `timings.json`, and `swx_verb_times` reports count/p50/p90+//!     per verb. That is the store that should pace a progress bar — an ETA+//!     measured on THIS machine beats a constant compiled into the bridge.+//!+//! Both are best-effort: a bridge must never fail a real verb because it could+//! not write its own diary. Both are bounded, because nothing this bridge writes+//! is allowed to grow without limit.++use serde_json::{json, Map, Value};+use std::sync::Mutex;++/// Ledger lines kept on disk. Older lines are dropped on the next append once+/// the file exceeds this, so the diary cannot outgrow the scratch budget.+const LEDGER_MAX_LINES: usize = 2_000;+/// Samples kept per verb in the timing store — enough for a stable p90, small+/// enough that the file stays a few KB.+const TIMING_SAMPLES: usize = 50;++static LEDGER_LOCK: Mutex<()> = Mutex::new(());+static TIMING_LOCK: Mutex<()> = Mutex::new(());++fn ledger_path(root: &std::path::Path) -> std::path::PathBuf {+    root.join("ledger.jsonl")+}++fn timings_path(root: &std::path::Path) -> std::path::PathBuf {+    root.join("timings.json")+}++fn now_epoch() -> u64 {+    std::time::SystemTime::now()+        .duration_since(std::time::UNIX_EPOCH)+        .map(|d| d.as_secs())+        .unwrap_or(0)+}++/// Record one background action. `action` is a stable slug the caller can+/// branch on (`document_created`, `document_closed`, `dialog_closed`,+/// `com_host_respawn`); `detail` is free-form context for a human.+pub fn record(action: &str, detail: Value) {+    record_in(&crate::scratch::root(), action, detail)+}++/// `record` with the root made explicit, so the tests exercise the real code+/// without mutating the process environment (which would race the other tests+/// sharing this process).+pub fn record_in(root: &std::path::Path, action: &str, detail: Value) {+    let entry = json!({"at": now_epoch(), "action": action, "detail": detail});+    let _guard = LEDGER_LOCK.lock();+    let path = ledger_path(root);+    if let Some(parent) = path.parent() {+        let _ = std::fs::create_dir_all(parent);+    }+    let mut lines: Vec<String> = std::fs::read_to_string(&path)+        .map(|s| s.lines().map(|l| l.to_string()).collect())+        .unwrap_or_default();+    lines.push(entry.to_string());+    if lines.len() > LEDGER_MAX_LINES {+        let drop = lines.len() - LEDGER_MAX_LINES;+        lines.drain(0..drop);+    }+    let _ = std::fs::write(&path, lines.join("\n") + "\n");+}++/// The most recent `limit` actions, newest LAST (chronological, the order a+/// human reads a log in).+pub fn read(limit: usize) -> Vec<Value> {+    read_in(&crate::scratch::root(), limit)+}++pub fn read_in(root: &std::path::Path, limit: usize) -> Vec<Value> {+    let _guard = LEDGER_LOCK.lock();+    let text = std::fs::read_to_string(ledger_path(root)).unwrap_or_default();+    let all: Vec<Value> = text.lines().filter_map(|l| serde_json::from_str(l).ok()).collect();+    let start = all.len().saturating_sub(limit.max(1));+    all[start..].to_vec()+}++/// Record how long one verb took on THIS machine.+pub fn record_time(verb: &str, seconds: f64) {+    record_time_in(&crate::scratch::root(), verb, seconds)+}++pub fn record_time_in(root: &std::path::Path, verb: &str, seconds: f64) {+    if !seconds.is_finite() || seconds < 0.0 {+        return;+    }+    let _guard = TIMING_LOCK.lock();+    let path = timings_path(root);+    if let Some(parent) = path.parent() {+        let _ = std::fs::create_dir_all(parent);+    }+    let mut store: Map<String, Value> = std::fs::read_to_string(&path)+        .ok()+        .and_then(|s| serde_json::from_str::<Value>(&s).ok())+        .and_then(|v| v.as_object().cloned())+        .unwrap_or_default();+    let samples = store.entry(verb.to_string()).or_insert_with(|| json!([]));+    if let Some(arr) = samples.as_array_mut() {+        arr.push(json!(round2(seconds)));+        if arr.len() > TIMING_SAMPLES {+            let drop = arr.len() - TIMING_SAMPLES;+            arr.drain(0..drop);+        }+    }+    let _ = std::fs::write(&path, Value::Object(store).to_string());+}++/// `{verb: {count, p50, p90, minSec, maxSec}}` — the Fusion `verb_times.stages`+/// shape, computed from the samples this machine actually produced.+pub fn stages() -> Value {+    stages_in(&crate::scratch::root())+}++pub fn stages_in(root: &std::path::Path) -> Value {+    let _guard = TIMING_LOCK.lock();+    let store: Map<String, Value> = std::fs::read_to_string(timings_path(root))+        .ok()+        .and_then(|s| serde_json::from_str::<Value>(&s).ok())+        .and_then(|v| v.as_object().cloned())+        .unwrap_or_default();+    let mut out = Map::new();+    for (verb, samples) in store {+        let mut v: Vec<f64> =+            samples.as_array().map(|a| a.iter().filter_map(|x| x.as_f64()).collect()).unwrap_or_default();+        if v.is_empty() {+            continue;+        }+        v.sort_by(|a, b| a.partial_cmp(b).unwrap_or(std::cmp::Ordering::Equal));+        out.insert(+            verb,+            json!({+                "count": v.len(),+                "p50": percentile(&v, 0.50),+                "p90": percentile(&v, 0.90),+                "minSec": round2(v[0]),+                "maxSec": round2(v[v.len() - 1]),+            }),+        );+    }+    Value::Object(out)+}++/// Nearest-rank percentile over an ALREADY-SORTED slice. Nearest-rank (not+/// linear interpolation) because with 3 samples an interpolated "p90" invents a+/// number no run ever produced; a real observed sample is the honest answer.+pub fn percentile(sorted: &[f64], q: f64) -> f64 {+    if sorted.is_empty() {+        return 0.0;+    }+    let rank = (q * sorted.len() as f64).ceil().max(1.0) as usize;+    round2(sorted[rank.min(sorted.len()) - 1])+}++fn round2(v: f64) -> f64 {+    (v * 100.0).round() / 100.0+}++/// Time a block and file the measurement under `verb`.+pub fn timed<T>(verb: &str, f: impl FnOnce() -> T) -> T {+    let started = std::time::Instant::now();+    let out = f();+    record_time(verb, started.elapsed().as_secs_f64());+    out+}++#[cfg(test)]+mod tests {+    use super::*;++    #[test]+    fn percentiles_are_observed_samples_not_interpolations() {+        let v = vec![1.0, 2.0, 3.0, 4.0, 10.0];+        assert_eq!(percentile(&v, 0.5), 3.0);+        assert_eq!(percentile(&v, 0.9), 10.0);+        assert_eq!(percentile(&[], 0.5), 0.0);+        // A single sample is its own p50 AND p90 — never an extrapolation.+        assert_eq!(percentile(&[7.5], 0.9), 7.5);+    }++    #[test]+    fn the_ledger_round_trips_and_stays_bounded() {+        let dir = std::env::temp_dir().join(format!("swx-ledger-{}", std::process::id()));+        let _ = std::fs::remove_dir_all(&dir);+        std::fs::create_dir_all(&dir).unwrap();++        record_in(&dir, "document_created", json!({"title": "Part1"}));+        record_in(&dir, "document_closed", json!({"title": "Part1", "saved": false}));+        let rows = read_in(&dir, 10);+        assert_eq!(rows.len(), 2);+        assert_eq!(rows[0]["action"], "document_created");+        assert_eq!(rows[1]["detail"]["saved"], false);+        assert!(rows[0]["at"].as_u64().unwrap() > 0);+        // newest LAST, and `limit` cuts from the OLD end+        assert_eq!(read_in(&dir, 1)[0]["action"], "document_closed");++        record_time_in(&dir, "swx_export", 1.0);+        record_time_in(&dir, "swx_export", 3.0);+        let s = stages_in(&dir);+        assert_eq!(s["swx_export"]["count"], 2);+        assert_eq!(s["swx_export"]["p90"], 3.0);+        assert_eq!(s["swx_export"]["minSec"], 1.0);++        // A negative or non-finite sample is refused, not stored as garbage.+        record_time_in(&dir, "swx_export", -5.0);+        record_time_in(&dir, "swx_export", f64::NAN);+        assert_eq!(stages_in(&dir)["swx_export"]["count"], 2);++        let _ = std::fs::remove_dir_all(&dir);+    }+}
src/lib.rsadded+119
@@ -0,0 +1,119 @@+//! Adom SOLIDWORKS bridge (`swx`) — one binary, two modes.+//!+//! ```text+//! ab (Adom Bridge) ── HTTP /command ──> swx-bridge.exe            (server mode)+//!                                          │ JSON-lines over stdio+//!                                          └─> swx-bridge.exe --com-host+//!                                              (child process holding the live+//!                                               SldWorks.Application COM object)+//! ```+//!+//! WHY a child process rather than an in-process COM thread: a wedged COM call+//! (SOLIDWORKS parked on a modal dialog, a rebuild that never returns) cannot be+//! killed as a thread — it can be killed as a process. The server owns the+//! child's lifecycle: lazy spawn, one request in flight, per-request timeout,+//! kill + respawn after a crash or a hang, stderr tail surfaced in `detail`.+//!+//! Non-Windows (or `SWX_MOCK=1`) swaps the real COM backend for the mock+//! backend, so the whole verb surface — routing, hints, error shapes, BOM/CSV+//! plumbing, the stdio protocol itself — is testable with no SOLIDWORKS and no+//! Windows.+//!+//! Bridge SDK contracts honored here: `--port N` off argv; bind ADOM_BIND_HOST+//! (loopback, never 0.0.0.0) FIRST, before anything slow, as the single-instance+//! guard; `/status` + `/health` with led/summary/tooltip; a rich `_hint` on every+//! verb response; `swx_uninstall` removes only what this bridge created; the+//! scratch dir is pruned; caller identity is logged (never trusted for auth).++pub mod abwin;+pub mod bom;+pub mod caller;+pub mod comhost;+pub mod detect;+pub mod findfiles;+pub mod httpc;+pub mod jobs;+pub mod ledger;+pub mod scratch;+pub mod script;+pub mod server;+pub mod verbs;+pub mod verbs3;+pub mod writes;++/// The bridge version ab reports and every response carries.+///+/// Cargo.toml is the single source of truth; the BRIDGE_VERSION file (which the+/// packaging scripts and bridge.json track) is checked against it AT COMPILE+/// TIME below, so the two can never drift apart unnoticed.+pub const BRIDGE_VERSION: &str = env!("CARGO_PKG_VERSION");++const _: () = {+    const FILE_VERSION: &str = include_str!("../BRIDGE_VERSION");+    const fn eq(a: &str, b: &str) -> bool {+        let (a, b) = (a.as_bytes(), b.as_bytes());+        if a.len() != b.len() {+            return false;+        }+        let mut i = 0;+        while i < a.len() {+            if a[i] != b[i] {+                return false;+            }+            i += 1;+        }+        true+    }+    assert!(+        eq(BRIDGE_VERSION, FILE_VERSION.trim_ascii()),+        "BRIDGE_VERSION file does not match the Cargo.toml package version — bump both together"+    );+};++/// True when the bridge serves the mock backend instead of real COM: an+/// explicit `SWX_MOCK=1`, or any non-Windows host (where SOLIDWORKS cannot+/// exist). Server and com-host child agree because they read the same rule+/// from the same inherited environment.+pub fn is_mock() -> bool {+    std::env::var("SWX_MOCK").as_deref() == Ok("1") || !cfg!(windows)+}++/// Entry point for both modes. `swx-bridge --com-host` becomes the COM child;+/// anything else is the HTTP bridge server.+pub fn run() {+    let args: Vec<String> = std::env::args().skip(1).collect();+    if args.iter().any(|a| a == "--com-host") {+        comhost::host::run();+    } else {+        server::run(parse_port_arg(&args));+    }+}++/// `--port N` / `--port=N` off argv. ab always passes it; the fallback only+/// matters when a developer runs the binary by hand.+pub fn parse_port_arg(args: &[String]) -> Option<u16> {+    let mut it = args.iter();+    while let Some(a) = it.next() {+        if a == "--port" {+            return it.next().and_then(|s| s.parse().ok());+        }+        if let Some(rest) = a.strip_prefix("--port=") {+            return rest.parse().ok();+        }+    }+    None+}++#[cfg(test)]+mod tests {+    use super::*;++    #[test]+    fn port_arg_forms() {+        let s = |v: &[&str]| v.iter().map(|x| x.to_string()).collect::<Vec<_>>();+        assert_eq!(parse_port_arg(&s(&["--port", "1234"])), Some(1234));+        assert_eq!(parse_port_arg(&s(&["--port=99"])), Some(99));+        assert_eq!(parse_port_arg(&s(&["--com-host"])), None);+        assert_eq!(parse_port_arg(&s(&["--port", "not-a-port"])), None);+    }+}
src/main.rsadded+11
@@ -0,0 +1,11 @@+//! swx-bridge — the Adom SOLIDWORKS bridge binary.+//!+//! Two modes in one exe (see lib.rs for the architecture):+//!   swx-bridge --port <n>   the HTTP bridge server ab spawns+//!   swx-bridge --com-host   the child process that owns the COM object+//!+//! ab spawns this directly (`spawn.kind: "exe"`), appending `--port <port>`.++fn main() {+    swx_bridge::run();+}
src/scratch.rsadded+271
@@ -0,0 +1,271 @@+//! The bridge's scratch space — and the promise to prune it.+//!+//! Everything this bridge writes on its own initiative (default export paths,+//! generated BOM CSVs) lands under one root:+//!+//! ```text+//! %LOCALAPPDATA%\Adom Bridge\bridges-cache\solidworks\exports\+//! ```+//!+//! `SWX_SCRATCH_DIR` overrides the root (the test harness points it at a temp+//! dir); with neither, we fall back to the OS temp dir. `swx_uninstall` deletes+//! exactly this root and nothing else.++use std::path::{Path, PathBuf};+use std::sync::Mutex;+use std::time::{Duration, SystemTime};++/// Everything the bridge creates lives under here — and nothing else does,+/// which is what makes `swx_uninstall` safe to run blind.+pub fn root() -> PathBuf {+    if let Ok(dir) = std::env::var("SWX_SCRATCH_DIR") {+        if !dir.is_empty() {+            return PathBuf::from(dir);+        }+    }+    if let Ok(local) = std::env::var("LOCALAPPDATA") {+        if !local.is_empty() {+            return Path::new(&local).join("Adom Bridge").join("bridges-cache").join("solidworks");+        }+    }+    std::env::temp_dir().join("adom-bridge-swx")+}++/// Where generated files go. Created on demand.+pub fn exports_dir() -> PathBuf {+    let d = root().join("exports");+    let _ = std::fs::create_dir_all(&d);+    d+}++/// Remove ONLY what the bridge itself wrote — the `exports/` subtree — best+/// effort, one item at a time. Never touches `root()` itself: on Windows that+/// is the `bridges-cache/solidworks` folder ab unzipped the RUNNING exe and+/// bridge.json into, so deleting it mid-uninstall would hit the running image+/// (ACCESS_DENIED) and leave ab's install half-removed during a /S cascade.+///+/// Returns (removed, failed) as display strings for `swx_uninstall`.+pub fn remove_artifacts() -> (Vec<String>, Vec<String>) {+    remove_artifacts_under(&root())+}++/// The scoped, best-effort removal with the root made explicit (so it is+/// testable without touching the process environment).+pub fn remove_artifacts_under(root: &Path) -> (Vec<String>, Vec<String>) {+    let exports = root.join("exports");+    let mut removed = Vec::new();+    let mut failed = Vec::new();+    // The bridge's own bookkeeping files (v0.3) live at the root next to+    // `exports/`, so they are removed by name — never by wiping the root, which+    // is ab's cache directory holding the running exe.+    // NOTE the absence of `ledger.jsonl`. `swx_uninstall` takes no gate — ab+    // calls it on app uninstall — so removing the ledger here would let a caller+    // erase the record of what it did by asking the bridge to tidy up. The+    // audit log is the one artifact that outlives the bridge; a human removes it+    // by deleting the folder, which is theirs to do.+    for name in ["timings.json", "settings.json", "com-host-created.json", "mock-solidworks-session"] {+        let f = root.join(name);+        if f.exists() {+            match std::fs::remove_file(&f) {+                Ok(()) => removed.push(f.to_string_lossy().to_string()),+                Err(e) => failed.push(format!("{}: {e}", f.display())),+            }+        }+    }+    if !exports.exists() {+        return (removed, failed);+    }+    // Per-item first, so one locked file (an export still being pulled) cannot+    // abort the whole cleanup — the SDK's best-effort rule.+    if let Ok(entries) = std::fs::read_dir(&exports) {+        for e in entries.flatten() {+            let p = e.path();+            let r = if p.is_dir() {+                std::fs::remove_dir_all(&p)+            } else {+                std::fs::remove_file(&p)+            };+            match r {+                Ok(()) => removed.push(p.to_string_lossy().to_string()),+                Err(err) => failed.push(format!("{}: {err}", p.display())),+            }+        }+    }+    // Then the now-(hopefully-)empty exports dir, but only if everything under+    // it went — never force it over a file we could not remove.+    if failed.is_empty() {+        match std::fs::remove_dir_all(&exports) {+            Ok(()) => removed.push(exports.to_string_lossy().to_string()),+            Err(err) => failed.push(format!("{}: {err}", exports.display())),+        }+    }+    (removed, failed)+}++static LAST_PRUNE: Mutex<Option<SystemTime>> = Mutex::new(None);++const MAX_AGE: Duration = Duration::from_secs(48 * 3600);+const MAX_FILES: usize = 300;+const PRUNE_EVERY: Duration = Duration::from_secs(600);++/// Age/count-capped cleanup of the exports dir, rate-limited to once per 10+/// minutes so a burst of exports does not turn into a burst of directory scans.+pub fn prune() {+    {+        let mut last = LAST_PRUNE.lock().unwrap_or_else(|e| e.into_inner());+        let now = SystemTime::now();+        if let Some(prev) = *last {+            if now.duration_since(prev).unwrap_or(PRUNE_EVERY) < PRUNE_EVERY {+                return;+            }+        }+        *last = Some(now);+    }+    prune_dir(&exports_dir(), SystemTime::now(), MAX_AGE, MAX_FILES);+}++/// The prune, with every input explicit (so it is testable without waiting 48h).+pub fn prune_dir(dir: &Path, now: SystemTime, max_age: Duration, max_files: usize) -> usize {+    let mut entries: Vec<(SystemTime, PathBuf)> = Vec::new();+    let read = match std::fs::read_dir(dir) {+        Ok(r) => r,+        Err(_) => return 0,+    };+    for e in read.flatten() {+        let path = e.path();+        let meta = match e.metadata() {+            Ok(m) if m.is_file() => m,+            _ => continue,+        };+        let mtime = meta.modified().unwrap_or(SystemTime::UNIX_EPOCH);+        entries.push((mtime, path));+    }+    let doomed = select_doomed(&mut entries, now, max_age, max_files);+    let mut removed = 0;+    for p in &doomed {+        if std::fs::remove_file(p).is_ok() {+            removed += 1;+        }+    }+    removed+}++/// Which files to evict: everything past `max_age`, then oldest-first until the+/// survivors fit `max_files`. Sorting oldest-first is what keeps an in-flight+/// brand-new export from ever being the one evicted.+pub fn select_doomed(+    entries: &mut Vec<(SystemTime, PathBuf)>,+    now: SystemTime,+    max_age: Duration,+    max_files: usize,+) -> Vec<PathBuf> {+    entries.sort_by(|a, b| a.0.cmp(&b.0));+    let too_old = |t: &SystemTime| now.duration_since(*t).map(|age| age > max_age).unwrap_or(false);+    let mut doomed: Vec<PathBuf> =+        entries.iter().filter(|(t, _)| too_old(t)).map(|(_, p)| p.clone()).collect();+    let survivors: Vec<&PathBuf> =+        entries.iter().filter(|(t, _)| !too_old(t)).map(|(_, p)| p).collect();+    if survivors.len() > max_files {+        let overflow = survivors.len() - max_files;+        doomed.extend(survivors.into_iter().take(overflow).cloned());+    }+    doomed+}++#[cfg(test)]+mod tests {+    use super::*;++    fn at(secs_ago: u64) -> SystemTime {+        SystemTime::UNIX_EPOCH + Duration::from_secs(1_000_000 - secs_ago)+    }++    #[test]+    fn evicts_by_age() {+        let now = SystemTime::UNIX_EPOCH + Duration::from_secs(1_000_000);+        let mut e = vec![+            (at(3600), PathBuf::from("fresh")),+            (at(200_000), PathBuf::from("ancient")),+        ];+        let doomed = select_doomed(&mut e, now, MAX_AGE, MAX_FILES);+        assert_eq!(doomed, vec![PathBuf::from("ancient")]);+    }++    #[test]+    fn evicts_oldest_first_over_the_cap() {+        let now = SystemTime::UNIX_EPOCH + Duration::from_secs(1_000_000);+        let mut e: Vec<(SystemTime, PathBuf)> =+            (0..5).map(|i| (at(i * 10), PathBuf::from(format!("f{i}")))).collect();+        // cap of 2 => the 3 oldest go, newest survive+        let doomed = select_doomed(&mut e, now, MAX_AGE, 2);+        assert_eq!(doomed.len(), 3);+        assert!(doomed.contains(&PathBuf::from("f4")));+        assert!(!doomed.contains(&PathBuf::from("f0")));+    }++    #[test]+    fn remove_artifacts_deletes_only_exports_never_the_cache_root() {+        let root = std::env::temp_dir().join(format!("swx-uninst-{}", std::process::id()));+        let _ = std::fs::remove_dir_all(&root);+        let exports = root.join("exports");+        std::fs::create_dir_all(&exports).unwrap();+        std::fs::write(exports.join("a.step"), b"x").unwrap();+        std::fs::write(exports.join("b-bom.csv"), b"x").unwrap();+        // A sibling standing in for ab's own files in the cache root.+        std::fs::write(root.join("bridge.json"), b"{}").unwrap();++        let (removed, failed) = remove_artifacts_under(&root);++        assert!(failed.is_empty(), "{failed:?}");+        assert!(!exports.exists(), "the exports subtree must be gone");+        assert!(root.join("bridge.json").exists(), "the cache root's own files must survive");+        assert!(root.exists(), "the cache root itself must never be deleted");+        assert!(!removed.is_empty());+        let _ = std::fs::remove_dir_all(&root);+    }++    #[test]+    fn prune_dir_actually_removes_files_and_survives_a_missing_dir() {+        let dir = std::env::temp_dir().join(format!("swx-prune-test-{}", std::process::id()));+        let _ = std::fs::create_dir_all(&dir);+        let old = dir.join("old.step");+        std::fs::write(&old, b"x").unwrap();+        // now = far in the future, so everything is past max_age+        let far_future = SystemTime::now() + Duration::from_secs(1_000_000);+        assert_eq!(prune_dir(&dir, far_future, MAX_AGE, MAX_FILES), 1);+        assert!(!old.exists());+        let _ = std::fs::remove_dir_all(&dir);+        assert_eq!(prune_dir(&dir, far_future, MAX_AGE, MAX_FILES), 0);+    }+}++// ── sticky settings ─────────────────────────────────────────────────────────++/// The bridge's own sticky settings (currently just the driving badge), stored+/// beside its exports so `swx_uninstall`'s scope statement stays true and a+/// preference survives a bridge restart without living in anybody's conversation.+fn settings_path() -> PathBuf {+    root().join("settings.json")+}++fn settings() -> serde_json::Map<String, serde_json::Value> {+    std::fs::read_to_string(settings_path())+        .ok()+        .and_then(|s| serde_json::from_str::<serde_json::Value>(&s).ok())+        .and_then(|v| v.as_object().cloned())+        .unwrap_or_default()+}++pub fn setting_bool(key: &str) -> Option<bool> {+    settings().get(key).and_then(|v| v.as_bool())+}++pub fn set_setting_bool(key: &str, value: bool) {+    let mut s = settings();+    s.insert(key.to_string(), serde_json::Value::Bool(value));+    let path = settings_path();+    if let Some(parent) = path.parent() {+        let _ = std::fs::create_dir_all(parent);+    }+    let _ = std::fs::write(path, serde_json::Value::Object(s).to_string());+}
src/script.rsadded+710
@@ -0,0 +1,710 @@+//! The `swx_run_script` modeling DSL — parsed here, executed on the com host.+//!+//! Fusion's escape hatch (`fusion_run_modeling_script`) is a Python string+//! evaluated inside Fusion, because Fusion HAS a Python interpreter in-process.+//! SOLIDWORKS has VBA, which is a macro *file* format driven through a UI, not+//! an in-process eval — so a faithful copy of Fusion's verb is not available.+//!+//! What IS available, and what the verb actually has to do, is build real+//! geometry deterministically: the analysis verbs (mass properties, bodies,+//! BOM, export) are worthless without a body to point them at, and the live+//! test suite has to be able to MAKE one. So the escape hatch here is a small+//! typed DSL over the SOLIDWORKS calls proven to work on a live install:+//!+//! ```json+//! {"script": [+//!    {"op": "new_part"},+//!    {"op": "sketch_rect", "plane": "Front Plane", "widthMm": 50, "heightMm": 30},+//!    {"op": "extrude", "depthMm": 20},+//!    {"op": "set_material", "name": "6061 Alloy"},+//!    {"op": "set_prop", "name": "PartNo", "value": "BRK-100"},+//!    {"op": "save_as", "path": "C:\\parts\\bracket.sldprt"}+//! ]}+//! ```+//!+//! Every dimension the caller writes is in MILLIMETRES (what a mechanical+//! engineer says out loud, and what `swx_inspect_bodies` reports back);+//! SOLIDWORKS' API is metres, and the conversion happens exactly once, here.+//!+//! Parsing lives on the server side, outside `cfg(windows)`, so a malformed+//! script is refused with a precise message BEFORE anything touches the live+//! CAD session — and so the whole grammar is unit-tested on this Linux host.++use serde_json::Value;++/// Millimetres to metres — the single place the unit boundary is crossed.+pub const MM: f64 = 0.001;++#[derive(Debug, Clone, PartialEq)]+pub enum Op {+    /// Create a new part document from the resolved part template.+    NewPart,+    /// Create a new assembly document from the resolved assembly template.+    NewAssembly,+    /// A corner rectangle on a named plane, in metres, relative to the origin.+    SketchRect { plane: String, x: f64, y: f64, width: f64, height: f64 },+    /// A circle on a named plane, in metres.+    SketchCircle { plane: String, x: f64, y: f64, radius: f64 },+    /// Extrude the sketch that is currently selected (the one just closed).+    Extrude { depth: f64, reverse: bool },+    /// Cut-extrude through the selected sketch.+    Cut { depth: f64, through_all: bool },+    SetMaterial { name: String, database: String },+    SetProp { name: String, value: String },+    SaveAs { path: String },+    Rebuild,+    ZoomFit,+}++impl Op {+    /// The slug used in the DSL and echoed in the per-step result.+    pub fn name(&self) -> &'static str {+        match self {+            Op::NewPart => "new_part",+            Op::NewAssembly => "new_assembly",+            Op::SketchRect { .. } => "sketch_rect",+            Op::SketchCircle { .. } => "sketch_circle",+            Op::Extrude { .. } => "extrude",+            Op::Cut { .. } => "cut",+            Op::SetMaterial { .. } => "set_material",+            Op::SetProp { .. } => "set_prop",+            Op::SaveAs { .. } => "save_as",+            Op::Rebuild => "rebuild",+            Op::ZoomFit => "zoom_fit",+        }+    }+}++/// Every op slug, for the unknown-op hint and for `swx_describe`.+pub const OPS: &[&str] = &[+    "new_part",+    "new_assembly",+    "sketch_rect",+    "sketch_circle",+    "extrude",+    "cut",+    "set_material",+    "set_prop",+    "save_as",+    "rebuild",+    "zoom_fit",+];++fn mm(step: &Value, key: &str, default: Option<f64>) -> Result<f64, String> {+    match step.get(key).and_then(|v| v.as_f64()) {+        Some(v) if v.is_finite() => Ok(v * MM),+        Some(_) => Err(format!("{key} must be a finite number of millimetres")),+        None => default.map(|d| d * MM).ok_or_else(|| format!("{key} (millimetres) is required")),+    }+}++fn text(step: &Value, key: &str) -> Result<String, String> {+    step.get(key)+        .and_then(|v| v.as_str())+        .filter(|s| !s.is_empty())+        .map(|s| s.to_string())+        .ok_or_else(|| format!("{key} is required"))+}++fn flag(step: &Value, key: &str, default: bool) -> bool {+    step.get(key).and_then(|v| v.as_bool()).unwrap_or(default)+}++/// Destination-path rules for the DSL's `save_as`, applied AT PARSE TIME.+///+/// The standalone `swx_save_as` verb has always run its destination through+/// `safe_out`; the DSL's `save_as` reached `SaveAs3` by a different road and+/// skipped it entirely, so a relative path resolved against the bridge's own+/// working directory and a `.wrl` destination walked straight past the block on+/// the format that hangs SOLIDWORKS. Checking here means both roads meet the+/// same rules, and a bad path is refused before the script starts rather than+/// halfway through it.+fn safe_dest(path: &str) -> Result<String, String> {+    let p = std::path::Path::new(path);+    let b = path.as_bytes();+    let drive_rooted =+        b.len() >= 3 && b[0].is_ascii_alphabetic() && b[1] == b':' && (b[2] == b'\\' || b[2] == b'/');+    if !(p.is_absolute() || path.starts_with('\\') || drive_rooted) {+        return Err(format!(+            "save_as path must be ABSOLUTE, got '{path}' — a relative path would resolve against              the bridge's own working directory"+        ));+    }+    if p.components().any(|c| matches!(c, std::path::Component::ParentDir)) {+        return Err(format!("save_as path must not contain a '..' component: {path}"));+    }+    // The SAME normalisation the verb layer uses: `a.wrl.`, `a.wrl ` and+    // `a.wrl::$DATA` all resolve to `a.wrl` on Windows.+    let ext = crate::verbs3::normalized_extension(path).unwrap_or_default();+    if BLOCKED_DEST_EXTENSIONS.contains(&ext.as_str()) {+        return Err(format!(+            "save_as would write a .{ext} file, which this bridge refuses: VRML export raises a              modal option sheet no unattended caller can answer, and on a live install it hung              SOLIDWORKS until the watchdog killed the host"+        ));+    }+    Ok(path.to_string())+}++/// Kept in step with `verbs3::BLOCKED_FORMATS`; duplicated here rather than+/// imported so the grammar module stays free of the verb layer (and so this+/// rule is unit-testable on its own). The pairing is asserted by a test.+pub const BLOCKED_DEST_EXTENSIONS: &[&str] = &["wrl", "vrml"];++/// One component insertion for `swx_add_component`, position in METRES.+///+/// Lives here, beside the modelling DSL, for the same reason the DSL does: this+/// is where millimetres become metres, exactly once, on the SERVER, so a bad+/// request is refused before anything touches the live CAD session — and so the+/// grammar is unit-tested on a Linux host. Both backends parse with this+/// function, so the mock cannot accept a request SOLIDWORKS would reject.+#[derive(Debug, Clone, PartialEq)]+pub struct Component {+    pub file: String,+    pub x: f64,+    pub y: f64,+    pub z: f64,+    /// Rotation about the ASSEMBLY's axes, in RADIANS, applied X then Y then Z.+    /// Degrees in (`rotXDeg`), radians here: a component that has to lie on its+    /// side is the ordinary case in a crate, and without this every part used in+    /// two orientations would need two files — which would split its BOM line in+    /// two and make the quantities lie.+    pub rx: f64,+    pub ry: f64,+    pub rz: f64,+    pub config: String,+}++impl Component {+    /// True when this component is not axis-aligned with the assembly and+    /// therefore needs its transform written after insertion.+    pub fn rotated(&self) -> bool {+        self.rx != 0.0 || self.ry != 0.0 || self.rz != 0.0+    }++    /// `IMathUtility::CreateTransform`'s sixteen doubles: a 3x3 rotation+    /// (indices 0-8), the translation in metres (9-11), the scale (12), and+    /// three SOLIDWORKS leaves at zero (13-15).+    ///+    /// The composed rotation is Rz·Ry·Rx — X first, then Y, then Z — which is+    /// what "roll it onto its side, then swing it round" means to the person+    /// writing the numbers.+    ///+    /// THE 3x3 IS WRITTEN COLUMN-MAJOR, and that is a live finding, not a+    /// reading of the docs: filling indices 0-8 row-major put a component+    /// rotated 90° about Z at -90° instead (measured off the assembly's centre+    /// of mass on SOLIDWORKS Connected R2026x). For the axis-aligned quarter+    /// turns a crate is made of, a transposed rotation is a rotation the other+    /// way — silently wrong rather than obviously broken, which is exactly the+    /// kind of error a bounding-box check catches and eyeballing does not.+    pub fn transform(&self) -> [f64; 16] {+        let (sx, cx) = self.rx.sin_cos();+        let (sy, cy) = self.ry.sin_cos();+        let (sz, cz) = self.rz.sin_cos();+        // Rz * Ry * Rx as r[row][col], v' = R·v.+        let r = [+            [cz * cy, cz * sy * sx - sz * cx, cz * sy * cx + sz * sx],+            [sz * cy, sz * sy * sx + cz * cx, sz * sy * cx - cz * sx],+            [-sy, cy * sx, cy * cx],+        ];+        let mut t = [0.0f64; 16];+        for col in 0..3 {+            for row in 0..3 {+                t[col * 3 + row] = r[row][col];+            }+        }+        t[9] = self.x;+        t[10] = self.y;+        t[11] = self.z;+        t[12] = 1.0;+        t+    }+}++/// Parse `components:[{filePath,xMm,yMm,zMm,configuration}]`, or the+/// single-component shorthand where those keys sit on the args themselves.+///+/// `filePath` is deliberately the ONLY accepted spelling of the component file:+/// `path` already means THE TARGET ASSEMBLY on every doc verb, and letting it+/// mean the component here would make the single-component shorthand ambiguous+/// in the one direction that matters — which document gets modified.+pub fn parse_components(args: &Value) -> Result<Vec<Component>, String> {+    let items: Vec<Value> = match args.get("components") {+        Some(Value::Array(a)) => a.clone(),+        Some(other) if !other.is_null() => {+            return Err(+                "components must be an ARRAY of {filePath, xMm, yMm, zMm} objects".to_string()+            )+        }+        _ => vec![args.clone()],+    };+    if items.is_empty() {+        return Err("components is empty — there is nothing to insert".to_string());+    }+    let mut out = Vec::with_capacity(items.len());+    for (i, it) in items.iter().enumerate() {+        let at = i + 1;+        let file = it+            .get("filePath")+            .or_else(|| it.get("file"))+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .ok_or_else(|| {+                format!(+                    "component {at}: filePath is required — an absolute .sldprt/.sldasm path on \+                     the DESKTOP filesystem"+                )+            })?;+        let p = std::path::Path::new(file);+        let b = file.as_bytes();+        let drive_rooted = b.len() >= 3+            && b[0].is_ascii_alphabetic()+            && b[1] == b':'+            && (b[2] == b'\\' || b[2] == b'/');+        if !(p.is_absolute() || file.starts_with('\\') || drive_rooted) {+            return Err(format!(+                "component {at}: filePath must be ABSOLUTE, got '{file}' — a relative path would \+                 resolve against the bridge's own working directory"+            ));+        }+        if p.components().any(|c| matches!(c, std::path::Component::ParentDir)) {+            return Err(format!("component {at}: filePath must not contain a '..' component: {file}"));+        }+        let coord = |k: &str| -> Result<f64, String> {+            match it.get(k) {+                None | Some(Value::Null) => Ok(0.0),+                Some(v) => v+                    .as_f64()+                    .filter(|f| f.is_finite())+                    .map(|f| f * MM)+                    .ok_or_else(|| format!("component {at}: {k} must be a finite number of millimetres")),+            }+        };+        let degrees = |k: &str| -> Result<f64, String> {+            match it.get(k) {+                None | Some(Value::Null) => Ok(0.0),+                Some(v) => v+                    .as_f64()+                    .filter(|f| f.is_finite())+                    .map(|f| f.to_radians())+                    .ok_or_else(|| format!("component {at}: {k} must be a finite number of degrees")),+            }+        };+        out.push(Component {+            file: file.to_string(),+            x: coord("xMm")?,+            y: coord("yMm")?,+            z: coord("zMm")?,+            rx: degrees("rotXDeg")?,+            ry: degrees("rotYDeg")?,+            rz: degrees("rotZDeg")?,+            config: it.get("configuration").and_then(|v| v.as_str()).unwrap_or("").to_string(),+        });+    }+    Ok(out)+}++/// Where in `paths` (an assembly's components, in SOLIDWORKS' order) the run of+/// `reqs` file paths sits, and which way round: `Some((offset, forward))`.+///+/// The components one `add_component` call inserted occupy a CONTIGUOUS run of+/// the assembly's component list — but SOLIDWORKS does not promise which end+/// new components land at, and the insert call returns no handle to them. So+/// the run is FOUND by matching the sequence of file paths rather than assumed+/// from an ordering, which means a wrong guess about that ordering can never+/// silently move the wrong component: no match, nothing written, and the+/// response says so.+pub fn locate_run(paths: &[String], reqs: &[Component]) -> Option<(usize, bool)> {+    if reqs.is_empty() || reqs.len() > paths.len() {+        return None;+    }+    let matches = |offset: usize, forward: bool| {+        reqs.iter().enumerate().all(|(i, r)| {+            let idx = if forward { offset + i } else { offset + reqs.len() - 1 - i };+            crate::verbs::same_path(&r.file, &paths[idx])+        })+    };+    // Newest components are usually at one end, so try both ends first; the+    // full scan is the fallback.+    let last = paths.len() - reqs.len();+    for offset in std::iter::once(last).chain(std::iter::once(0)).chain(0..=last) {+        for forward in [true, false] {+            if matches(offset, forward) {+                return Some((offset, forward));+            }+        }+    }+    None+}++/// Parse a `script` argument into ops. Accepts the array directly or an object+/// with a `steps`/`script` array, because both are things a caller writes.+pub fn parse(script: &Value) -> Result<Vec<Op>, String> {+    let steps = match script {+        Value::Array(a) => a.clone(),+        Value::Object(_) => script+            .get("steps")+            .or_else(|| script.get("script"))+            .and_then(|v| v.as_array())+            .cloned()+            .ok_or_else(|| "script must be an array of steps, or an object with `steps`".to_string())?,+        _ => {+            return Err(+                "script must be a JSON array of steps (this bridge has no scripting host to \+                 evaluate a string of code — see the op list in the hint)"+                    .to_string(),+            )+        }+    };+    if steps.is_empty() {+        return Err("script has no steps".to_string());+    }+    let mut ops = Vec::with_capacity(steps.len());+    for (i, step) in steps.iter().enumerate() {+        ops.push(parse_step(step).map_err(|e| format!("step {}: {e}", i + 1))?);+    }+    Ok(ops)+}++fn parse_step(step: &Value) -> Result<Op, String> {+    let op = step+        .get("op")+        .and_then(|v| v.as_str())+        .ok_or_else(|| format!("missing `op` (one of: {})", OPS.join(", ")))?;+    let plane = || {+        step.get("plane")+            .and_then(|v| v.as_str())+            .filter(|s| !s.is_empty())+            .unwrap_or("Front Plane")+            .to_string()+    };+    Ok(match op {+        "new_part" => Op::NewPart,+        "new_assembly" => Op::NewAssembly,+        "sketch_rect" => Op::SketchRect {+            plane: plane(),+            x: mm(step, "xMm", Some(0.0))?,+            y: mm(step, "yMm", Some(0.0))?,+            width: mm(step, "widthMm", None)?,+            height: mm(step, "heightMm", None)?,+        },+        "sketch_circle" => Op::SketchCircle {+            plane: plane(),+            x: mm(step, "xMm", Some(0.0))?,+            y: mm(step, "yMm", Some(0.0))?,+            radius: mm(step, "radiusMm", None)?,+        },+        "extrude" => Op::Extrude { depth: mm(step, "depthMm", None)?, reverse: flag(step, "reverse", false) },+        "cut" => Op::Cut {+            depth: mm(step, "depthMm", Some(0.0))?,+            through_all: flag(step, "throughAll", false),+        },+        "set_material" => Op::SetMaterial {+            name: text(step, "name")?,+            database: step+                .get("database")+                .and_then(|v| v.as_str())+                .filter(|s| !s.is_empty())+                .unwrap_or("SOLIDWORKS Materials.sldmat")+                .to_string(),+        },+        "set_prop" => Op::SetProp {+            name: text(step, "name")?,+            value: match step.get("value") {+                Some(Value::String(s)) => s.clone(),+                Some(other) => other.to_string(),+                None => return Err("value is required".into()),+            },+        },+        "save_as" => Op::SaveAs { path: safe_dest(&text(step, "path")?)? },+        "rebuild" => Op::Rebuild,+        "zoom_fit" => Op::ZoomFit,+        other => {+            return Err(format!("unknown op '{other}' (valid ops: {})", OPS.join(", ")))+        }+    })+}++/// A sketch op must come before the feature that consumes it, and a feature+/// needs a document. Checked BEFORE the first COM call so a script that cannot+/// work never half-runs on the user's live session — the difference between a+/// clean refusal and a stray unsaved document on their screen.+pub fn validate(ops: &[Op], has_open_doc: bool) -> Result<(), String> {+    let mut doc = has_open_doc;+    let mut sketch_pending = false;+    for (i, op) in ops.iter().enumerate() {+        let at = i + 1;+        match op {+            Op::NewPart | Op::NewAssembly => doc = true,+            _ if !doc => {+                return Err(format!(+                    "step {at} ({}) needs a document: start the script with new_part, or open one \+                     first with swx_open / swx_new_document",+                    op.name()+                ))+            }+            Op::SketchRect { .. } | Op::SketchCircle { .. } => sketch_pending = true,+            Op::Extrude { .. } | Op::Cut { .. } => {+                if !sketch_pending {+                    return Err(format!(+                        "step {at} ({}) has no sketch to consume — put a sketch_rect or \+                         sketch_circle immediately before it",+                        op.name()+                    ));+                }+                sketch_pending = false;+            }+            _ => {}+        }+    }+    Ok(())+}++#[cfg(test)]+mod tests {+    use super::*;+    use serde_json::json;++    #[test]+    fn parses_the_documented_example_and_converts_mm_to_metres() {+        let ops = parse(&json!([+            {"op": "new_part"},+            {"op": "sketch_rect", "plane": "Top Plane", "widthMm": 50, "heightMm": 30},+            {"op": "extrude", "depthMm": 20},+            {"op": "set_material", "name": "6061 Alloy"},+            {"op": "set_prop", "name": "PartNo", "value": "BRK-100"},+            {"op": "save_as", "path": "C:\\p\\b.sldprt"}+        ]))+        .unwrap();+        assert_eq!(ops.len(), 6);+        assert_eq!(+            ops[1],+            Op::SketchRect { plane: "Top Plane".into(), x: 0.0, y: 0.0, width: 0.05, height: 0.03 }+        );+        assert_eq!(ops[2], Op::Extrude { depth: 0.02, reverse: false });+        assert_eq!(+            ops[3],+            Op::SetMaterial { name: "6061 Alloy".into(), database: "SOLIDWORKS Materials.sldmat".into() }+        );+        // a non-string prop value is stringified rather than refused+        assert_eq!(parse(&json!([{"op":"set_prop","name":"Qty","value":4}])).unwrap()[0],+                   Op::SetProp { name: "Qty".into(), value: "4".into() });+    }++    #[test]+    fn defaults_the_plane_and_the_sketch_origin() {+        let ops = parse(&json!([{"op": "sketch_circle", "radiusMm": 5}])).unwrap();+        assert_eq!(ops[0], Op::SketchCircle { plane: "Front Plane".into(), x: 0.0, y: 0.0, radius: 0.005 });+    }++    #[test]+    fn refuses_what_it_cannot_honestly_run() {+        // a code string: there is no scripting host, and saying so beats a COM error+        assert!(parse(&json!("import adsk")).unwrap_err().contains("array of steps"));+        assert!(parse(&json!([])).unwrap_err().contains("no steps"));+        assert!(parse(&json!([{"op": "fly"}])).unwrap_err().contains("unknown op 'fly'"));+        assert!(parse(&json!([{}])).unwrap_err().contains("missing `op`"));+        // the step INDEX is in the message — a 20-step script needs to say which one+        let e = parse(&json!([{"op": "new_part"}, {"op": "extrude"}])).unwrap_err();+        assert!(e.starts_with("step 2:"), "{e}");+        assert!(e.contains("depthMm"));+        // NaN / infinity cannot become a dimension+        assert!(parse(&json!([{"op": "extrude", "depthMm": "20"}])).unwrap_err().contains("depthMm"));+    }++    #[test]+    fn validation_catches_the_two_orderings_that_cannot_work() {+        let ops = parse(&json!([{"op": "extrude", "depthMm": 5}])).unwrap();+        let e = validate(&ops, false).unwrap_err();+        assert!(e.contains("needs a document"), "{e}");+        // with a document already open, the same script fails for the OTHER reason+        assert!(validate(&ops, true).unwrap_err().contains("no sketch to consume"));++        let good = parse(&json!([+            {"op": "new_part"},+            {"op": "sketch_rect", "widthMm": 10, "heightMm": 10},+            {"op": "extrude", "depthMm": 2}+        ]))+        .unwrap();+        assert!(validate(&good, false).is_ok());+        // one sketch feeds exactly one feature+        let two = parse(&json!([+            {"op": "new_part"},+            {"op": "sketch_rect", "widthMm": 10, "heightMm": 10},+            {"op": "extrude", "depthMm": 2},+            {"op": "extrude", "depthMm": 2}+        ]))+        .unwrap();+        assert!(validate(&two, false).is_err());+    }++    #[test]+    fn save_as_paths_obey_the_same_rules_as_the_standalone_verb() {+        // absolute is fine, on either platform's spelling+        assert!(parse(&json!([{"op": "save_as", "path": "C:\\parts\\a.sldprt"}])).is_ok());+        assert!(parse(&json!([{"op": "save_as", "path": "/tmp/a.sldprt"}])).is_ok());+        // relative would resolve against the bridge's cwd — the exact bypass+        // that let a script write outside the destination the caller believed in+        let e = parse(&json!([{"op": "save_as", "path": "RELATIVE-BYPASS.sldprt"}])).unwrap_err();+        assert!(e.contains("ABSOLUTE"), "{e}");+        assert!(parse(&json!([{"op": "save_as", "path": "/tmp/../etc/x"}])).unwrap_err().contains(".."));+        // ...and the format that HANGS SOLIDWORKS cannot sneak in by filename+        let e = parse(&json!([{"op": "save_as", "path": "C:\\x\\a.WRL"}])).unwrap_err();+        assert!(e.contains("VRML"), "{e}");+    }++    #[test]+    fn a_hostile_destination_cannot_smuggle_the_blocked_extension_past() {+        // Windows strips trailing dots and spaces and ignores an ADS suffix, so+        // every one of these opens `a.wrl`. A raw string compare admitted all+        // three.+        for bad in [r"C:\x\a.wrl.", "C:\\x\\a.wrl ", r"C:\x\a.wrl::$DATA", r"C:\x\a.WRL",+                    r"C:\x\a.Wrl..  "] {+            let e = parse(&json!([{"op": "save_as", "path": bad}])).unwrap_err();+            assert!(e.contains("VRML"), "{bad} should have been refused, got: {e}");+        }+        // ...and a legitimate destination still works.+        assert!(parse(&json!([{"op": "save_as", "path": r"C:\x\a.sldprt"}])).is_ok());+    }++    #[test]+    fn the_blocked_extension_list_matches_the_verb_layers() {+        // Two lists, one rule: if these ever drift, the DSL becomes a bypass for+        // the guard the verb layer enforces.+        let mut a: Vec<&str> = BLOCKED_DEST_EXTENSIONS.to_vec();+        let mut b: Vec<&str> = crate::verbs3::BLOCKED_FORMATS.to_vec();+        a.sort();+        b.sort();+        assert_eq!(a, b, "script::BLOCKED_DEST_EXTENSIONS must match verbs3::BLOCKED_FORMATS");+    }++    #[test]+    fn components_parse_in_both_shapes_and_convert_mm_to_metres() {+        // the array shape+        let c = parse_components(&json!({"components": [+            {"filePath": "C:\\p\\a.sldprt", "xMm": 100, "yMm": -25.4, "zMm": 0},+            {"filePath": "C:\\p\\b.sldprt", "configuration": "Long"}+        ]}))+        .unwrap();+        assert_eq!(c.len(), 2);+        assert_eq!(+            c[0],+            Component {+                file: "C:\\p\\a.sldprt".into(),+                x: 0.1,+                y: -0.0254,+                z: 0.0,+                rx: 0.0,+                ry: 0.0,+                rz: 0.0,+                config: String::new()+            }+        );+        assert!(!c[0].rotated());+        // omitted coordinates are the origin, not an error+        assert_eq!(c[1].x, 0.0);+        assert_eq!(c[1].config, "Long");+        // the single-component shorthand, with the assembly named by `path`+        let one = parse_components(&json!({"path": "C:\\p\\crate.sldasm", "filePath": "C:\\p\\a.sldprt", "zMm": 12.7})).unwrap();+        assert_eq!(one.len(), 1);+        assert_eq!(one[0].z, 0.0127);+        // ...and `path` is NOT read as the component: it names the assembly.+        assert_eq!(one[0].file, "C:\\p\\a.sldprt");+    }++    #[test]+    fn components_refuse_what_would_land_somewhere_unintended() {+        assert!(parse_components(&json!({"components": []})).unwrap_err().contains("empty"));+        assert!(parse_components(&json!({"components": {"filePath": "C:\\a.sldprt"}}))+            .unwrap_err()+            .contains("ARRAY"));+        assert!(parse_components(&json!({})).unwrap_err().contains("filePath is required"));+        // the same two path rules the DSL's save_as enforces+        assert!(parse_components(&json!({"filePath": "RELATIVE.sldprt"})).unwrap_err().contains("ABSOLUTE"));+        assert!(parse_components(&json!({"filePath": "/tmp/../etc/a.sldprt"})).unwrap_err().contains(".."));+        // a NaN coordinate cannot become a position+        assert!(parse_components(&json!({"filePath": "C:\\a.sldprt", "xMm": "12"}))+            .unwrap_err()+            .contains("xMm"));+        // and the step index is in the message+        let e = parse_components(&json!({"components": [{"filePath": "C:\\a.sldprt"}, {}]})).unwrap_err();+        assert!(e.starts_with("component 2:"), "{e}");+    }++    #[test]+    fn a_component_transform_is_the_sixteen_doubles_solidworks_wants() {+        let at = |x: f64, y: f64, z: f64, rz: f64| Component {+            file: "C:\\a.sldprt".into(),+            x,+            y,+            z,+            rx: 0.0,+            ry: 0.0,+            rz: rz.to_radians(),+            config: String::new(),+        };+        // No rotation: identity, the translation, and the scale.+        let t = at(0.1, 0.2, 0.3, 0.0).transform();+        assert_eq!(&t[..9], &[1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0]);+        assert_eq!((t[9], t[10], t[11], t[12]), (0.1, 0.2, 0.3, 1.0));+        assert_eq!(&t[13..], &[0.0, 0.0, 0.0]);+        // A quarter turn about Z sends local +X to assembly +Y. Written+        // COLUMN-major, so t[0..3] is where local +X ends up.+        let t = at(0.0, 0.0, 0.0, 90.0).transform();+        let round = |v: f64| (v * 1e9).round() / 1e9;+        let col = |i: usize| [round(t[i * 3]), round(t[i * 3 + 1]), round(t[i * 3 + 2])];+        assert_eq!(col(0), [0.0, 1.0, 0.0], "local +X becomes assembly +Y");+        assert_eq!(col(1), [-1.0, 0.0, 0.0], "local +Y becomes assembly -X");+        assert_eq!(col(2), [0.0, 0.0, 1.0], "Z is untouched");+        // ...and a quarter turn about Y sends local +Z to assembly +X.+        let mut lay = at(0.0, 0.0, 0.0, 0.0);+        lay.ry = std::f64::consts::FRAC_PI_2;+        let t = lay.transform();+        let col = |i: usize| [round(t[i * 3]), round(t[i * 3 + 1]), round(t[i * 3 + 2])];+        assert_eq!(col(2), [1.0, 0.0, 0.0], "local +Z becomes assembly +X");+        // Degrees in, radians kept.+        let c = parse_components(&json!({"filePath": "C:\\a.sldprt", "rotYDeg": 90})).unwrap();+        assert_eq!(round(c[0].ry), round(std::f64::consts::FRAC_PI_2));+        assert!(c[0].rotated());+        assert!(parse_components(&json!({"filePath": "C:\\a.sldprt", "rotZDeg": "90"}))+            .unwrap_err()+            .contains("rotZDeg"));+    }++    #[test]+    fn an_inserted_run_is_found_by_matching_the_path_sequence() {+        let c = |f: &str| Component {+            file: f.into(),+            x: 0.0,+            y: 0.0,+            z: 0.0,+            rx: 0.0,+            ry: 0.0,+            rz: 0.0,+            config: String::new(),+        };+        let p = |v: &[&str]| -> Vec<String> { v.iter().map(|s| s.to_string()).collect() };+        let reqs = vec![c("C:\\p\\a.sldprt"), c("C:\\p\\b.sldprt"), c("C:\\p\\a.sldprt")];+        // appended at the end, in order+        let paths = p(&["C:\\p\\z.sldprt", "C:\\p\\a.sldprt", "C:\\p\\b.sldprt", "C:\\p\\a.sldprt"]);+        assert_eq!(locate_run(&paths, &reqs), Some((1, true)));+        // prepended, newest first — the reversed run+        let paths = p(&["C:\\p\\a.sldprt", "C:\\p\\b.sldprt", "C:\\p\\a.sldprt", "C:\\p\\z.sldprt"]);+        assert_eq!(locate_run(&paths, &reqs), Some((0, true)));+        let reqs2 = vec![c("C:\\p\\a.sldprt"), c("C:\\p\\b.sldprt")];+        let paths = p(&["C:\\p\\b.sldprt", "C:\\p\\a.sldprt"]);+        assert_eq!(locate_run(&paths, &reqs2), Some((0, false)));+        // SOLIDWORKS uppercases the extension it reports back+        let paths = p(&["C:\\p\\A.SLDPRT", "C:\\p\\B.SLDPRT"]);+        assert_eq!(locate_run(&paths, &reqs2), Some((0, true)));+        // NO MATCH is an answer, not a guess+        assert_eq!(locate_run(&p(&["C:\\p\\z.sldprt", "C:\\p\\y.sldprt"]), &reqs2), None);+        assert_eq!(locate_run(&p(&["C:\\p\\a.sldprt"]), &reqs2), None);+        assert_eq!(locate_run(&p(&["C:\\p\\a.sldprt"]), &[]), None);+    }++    #[test]+    fn an_object_wrapper_is_accepted_because_callers_write_both() {+        let ops = parse(&json!({"steps": [{"op": "rebuild"}]})).unwrap();+        assert_eq!(ops, vec![Op::Rebuild]);+        assert_eq!(ops[0].name(), "rebuild");+        assert!(OPS.contains(&"rebuild"));+    }+}
src/server.rsadded+276
@@ -0,0 +1,276 @@+//! The HTTP bridge server — what ab spawns and talks to.+//!+//! Contract (Adom Bridge SDK):+//!   * `--port N` off argv; bind `ADOM_BIND_HOST` (127.0.0.1), never 0.0.0.0 —+//!     a wildcard bind pops the Windows firewall dialog and exposes the bridge+//!     off-box;+//!   * bind FIRST, before anything slow. A failed bind means another instance+//!     already owns the port, so we say so and exit 0 — that is the whole+//!     single-instance guard, and it only works if nothing enables address+//!     reuse (nothing here does);+//!   * `GET /status` and `/health` → 200 JSON with the led/summary/tooltip the+//!     status chip renders verbatim;+//!   * `POST /command` → the verb result, relayed to the caller as-is;+//!   * anything else → 404.+//!+//! Requests are served on a small fixed pool of threads rather than one per+//! connection: COM work serializes on the com host anyway, but `swx_progress`+//! must still be able to answer WHILE a 90-second interference check is in+//! flight — that is the entire reason for more than one worker.++use crate::verbs::{self, Ctx};+use serde_json::{json, Value};+use std::io::Read;+use std::net::TcpListener;+use std::sync::Arc;+use tiny_http::{Header, Method, Request, Response, Server, StatusCode};++/// Fallback when nothing passes `--port` (ab always does; bridge.json declares+/// `"port": 0`, so ab picks a free one and tells us).+pub const DEFAULT_PORT: u16 = 24695;++const WORKERS: usize = 4;++pub fn run(port: Option<u16>) {+    let port = port.unwrap_or(DEFAULT_PORT);+    let host = std::env::var("ADOM_BIND_HOST").unwrap_or_else(|_| "127.0.0.1".to_string());++    println!(+        "[swx] starting v{} on port {port} (pid {}, mock={})",+        crate::BRIDGE_VERSION,+        std::process::id(),+        crate::is_mock()+    );++    // Bind before doing anything slow: a duplicate instance must fail here and+    // exit cleanly rather than race the real one.+    let listener = match TcpListener::bind((host.as_str(), port)) {+        Ok(l) => l,+        Err(e) => {+            println!(+                "[swx] port {port} already in use ({e}) — another instance owns it; exiting cleanly."+            );+            return;+        }+    };+    let bound = listener.local_addr().map(|a| a.port()).unwrap_or(port);+    let server = match Server::from_listener(listener, None) {+        Ok(s) => Arc::new(s),+        Err(e) => {+            eprintln!("[swx] failed to start HTTP server: {e}");+            return;+        }+    };++    // Detection AFTER the bind — it touches the registry and shells out to+    // tasklist, which is exactly the kind of slow the port must not wait on.+    let detection = crate::detect::detect();+    println!(+        "[swx] detection: installed={} exe={:?} running={}",+        detection.installed, detection.exe, detection.running+    );+    let ctx = Arc::new(Ctx::new(detection));+    crate::scratch::prune();++    println!("[swx] listening on http://{host}:{bound} — /status and /command");++    let mut workers = Vec::new();+    for i in 0..WORKERS {+        let server = Arc::clone(&server);+        let ctx = Arc::clone(&ctx);+        workers.push(+            std::thread::Builder::new()+                .name(format!("swx-http-{i}"))+                .spawn(move || loop {+                    match server.recv() {+                        // A handler panic must cost ONE request, never the worker+                        // thread — otherwise WORKERS panics kill every worker and+                        // the process ab supervises silently dies. The inner+                        // dispatch is also panic-caught (so the caller gets JSON);+                        // this outer guard covers a panic anywhere else in handle+                        // (header parsing, the response write) where `req` is gone+                        // and tiny_http closes the connection on its own.+                        Ok(req) => {+                            let ctx = Arc::clone(&ctx);+                            if std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| {+                                handle(&ctx, req)+                            }))+                            .is_err()+                            {+                                crate::caller::clear();+                                eprintln!("[swx] worker recovered from a panic; still serving");+                            }+                        }+                        Err(e) => {+                            eprintln!("[swx] accept failed: {e}");+                            return;+                        }+                    }+                })+                .expect("spawn worker"),+        );+    }+    for w in workers {+        let _ = w.join();+    }+    ctx.com.shutdown();+}++/// The health payload. `led`/`summary`/`tooltip` are rendered verbatim on ab's+/// status chip — yellow (not red) with SOLIDWORKS absent, because the BRIDGE is+/// fine and the host app is simply not there yet.+pub fn status_payload(ctx: &Ctx) -> Value {+    let d = ctx.detection();+    let (led, summary, tooltip) = if crate::is_mock() {+        (+            "yellow",+            "mock mode (no SOLIDWORKS)".to_string(),+            "SOLIDWORKS bridge is serving the MOCK backend — for development only. Verbs answer \+             with canned data; nothing touches a real document."+                .to_string(),+        )+    } else if d.installed {+        (+            "green",+            "SOLIDWORKS ready".to_string(),+            format!("SOLIDWORKS bridge up — {}", d.exe.clone().unwrap_or_default()),+        )+    } else {+        (+            "yellow",+            "SOLIDWORKS not installed".to_string(),+            "Bridge up; SOLIDWORKS absent. A 30-day trial serial from Hawk Ridge Systems is \+             pending — install once it arrives. Detection and file-search verbs work today."+                .to_string(),+        )+    };+    json!({+        "status": "ok",+        "led": led,+        "summary": summary,+        "tooltip": tooltip,+        "bridgeVersion": crate::BRIDGE_VERSION,+        "solidworks": d.to_json(),+        "mock": crate::is_mock(),+    })+}++fn handle(ctx: &Arc<Ctx>, mut req: Request) {+    let method = req.method().clone();+    let url = req.url().to_string();+    match (&method, url.as_str()) {+        (Method::Get, "/status") | (Method::Get, "/health") => {+            respond(req, 200, &status_payload(ctx));+        }+        (Method::Post, "/command") => {+            // Read the caller headers before the body borrow starts.+            let headers: Vec<(String, String)> = req+                .headers()+                .iter()+                .map(|h| (h.field.as_str().as_str().to_string(), h.value.as_str().to_string()))+                .collect();+            // Cap the body: a bridge on loopback never needs megabytes of args,+            // and an unbounded read is a trivial memory-exhaustion vector.+            const MAX_BODY: u64 = 8 * 1024 * 1024;+            let mut raw = String::new();+            if let Err(e) = req.as_reader().take(MAX_BODY + 1).read_to_string(&mut raw) {+                respond(req, 400, &bad_request(format!("read body: {e}")));+                return;+            }+            if raw.len() as u64 > MAX_BODY {+                respond(+                    req,+                    413,+                    &bad_request(format!("request body exceeds the {MAX_BODY}-byte cap")),+                );+                return;+            }+            if raw.trim().is_empty() {+                raw = "{}".to_string();+            }+            let envelope: Value = match serde_json::from_str(&raw) {+                Ok(v) => v,+                Err(e) => {+                    respond(req, 400, &bad_request(format!("Invalid JSON: {e}")));+                    return;+                }+            };+            let command =+                envelope.get("command").and_then(|v| v.as_str()).unwrap_or("").to_string();+            let args = envelope.get("args").cloned().unwrap_or_else(|| json!({}));++            crate::caller::set_from_request(+                |name| {+                    headers+                        .iter()+                        .find(|(k, _)| k.eq_ignore_ascii_case(name))+                        .map(|(_, v)| v.clone())+                },+                &args,+            );+            // ONE line per incoming verb — never per item inside a loop, never a+            // parallel log file. ab captures stdout; this is the whole log.+            let mut args_str = args.to_string();+            if args_str.len() > 400 {+                // Truncate on a char boundary — a Windows path with a non-ASCII+                // folder name must not panic the logger.+                let mut cut = 400;+                while cut > 0 && !args_str.is_char_boundary(cut) {+                    cut -= 1;+                }+                args_str.truncate(cut);+                args_str.push('…');+            }+            println!("[swx] {command}{} | args: {args_str}", crate::caller::log_suffix());++            // A verb panic becomes a JSON error the caller can read (and report),+            // not a dropped connection or a dead worker.+            let result = std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| {+                verbs::dispatch(ctx, &command, &args)+            }))+            .unwrap_or_else(|panic| {+                let what = panic+                    .downcast_ref::<&str>()+                    .map(|s| s.to_string())+                    .or_else(|| panic.downcast_ref::<String>().cloned())+                    .unwrap_or_else(|| "unknown panic".into());+                eprintln!("[swx] verb '{command}' panicked: {what}");+                json!({+                    "success": false,+                    "error": format!("the bridge panicked handling '{command}': {what}"),+                    "_hint": "This is a bug in the bridge — the worker recovered and is still \+                              serving. Retry, and please report it.",+                    "_reportIssues": crate::verbs::report_issues(),+                })+            });+            crate::caller::clear();+            respond(req, 200, &result);+        }+        _ => {+            respond(req, 404, &json!({"error": format!("{method} {url} not found")}));+        }+    }+}++/// A 400/413 body with the same _hint/_reportIssues courtesy every verb failure+/// gets — a malformed request should still tell the caller how to proceed.+fn bad_request(error: String) -> Value {+    json!({+        "success": false,+        "error": error,+        "_hint": "POST /command with a JSON body {\"command\":\"swx_...\",\"args\":{...}}. \+                  swx_describe lists the verbs; GET /status is the health check.",+        "_reportIssues": crate::verbs::report_issues(),+    })+}++fn respond(req: Request, status: u16, body: &Value) {+    let bytes = serde_json::to_vec(body).unwrap_or_else(|_| b"{}".to_vec());+    let header = Header::from_bytes(&b"Content-Type"[..], &b"application/json"[..])+        .expect("static header parses");+    let response =+        Response::from_data(bytes).with_status_code(StatusCode(status)).with_header(header);+    if let Err(e) = req.respond(response) {+        eprintln!("[swx] respond failed: {e}");+    }+}
src/verbs.rsadded+2202
@@ -0,0 +1,2202 @@+//! The 23 `swx_*` verbs.+//!+//! Every response ab relays VERBATIM to the calling AI, so the `_hint` on each+//! one IS this bridge's documentation — the part that actually gets read. The+//! rules the shapes follow:+//!+//!   * `success` is always present and boolean.+//!   * failures carry a stable, branchable `errorCode` when the caller can act+//!     on it (`host_app_not_installed`, `reason_required`) and `_reportIssues`+//!     so a real-machine bug can be filed without asking how.+//!   * anything that touches a window carries `windowEtiquette:"background"` —+//!     this bridge never steals the user's screen.+//!   * slow verbs carry a terminal `progress` frame, and `swx_progress` reports+//!     what is in flight right now.+//!+//! Verbs that do NOT need COM (status, readiness, describe, progress,+//! find_files, uninstall) work with SOLIDWORKS absent — that is the difference+//! between a bridge that is useless before the trial serial arrives and one that+//! can already answer "what do I have?". swx_screenshot is gated even though it+//! delegates to ab: there is nothing to screenshot without a running SOLIDWORKS+//! window, so it returns host_app_not_installed rather than an empty capture.++use crate::comhost::{ComHost, SidecarError};+use crate::detect::{detect, Detection};+use crate::jobs::Jobs;+use serde_json::{json, Map, Value};+use std::sync::{Arc, RwLock};+use std::time::Duration;++/// The bridge's own wiki page — where bugs in THIS bridge go.+const SLUG: &str = "adom/solidworks-bridge";++pub const TRIAL_HINT: &str =+    "SOLIDWORKS is not installed on this machine. A 30-day desktop trial was requested from \+     Hawk Ridge Systems (reseller) — the serial number arrives by email, then the Installation \+     Manager installs it. Until then only the detection/file-search verbs work (swx_status, \+     swx_readiness, swx_describe, swx_find_files, swx_progress). Do NOT tell the user to install \+     it by hand; offer to walk the install once the serial exists.";++pub fn report_issues() -> String {+    format!(+        "THIS MAY BE A SOLIDWORKS BRIDGE BUG. PLEASE REPORT IT. Check for a duplicate with \+         `adom-wiki issue list {SLUG}`, then file: `adom-wiki issue create {SLUG} --title \+         \"<one-line symptom>\" --category bug-report --body \"<what you ran, what you expected, \+         what happened, the VERBATIM response JSON, the bridge version from bridge_list, and the \+         OS>\"`. Reports from real machines are the only way this bridge gets correct. (An \+         ab-core problem, such as the relay, bridge lifecycle or caller identity, belongs on \+         adom/adom-bridge instead.)"+    )+}++/// Everything a verb needs: the com host, the progress registry, and the last+/// detection result.+pub struct Ctx {+    pub com: Arc<ComHost>,+    pub jobs: Arc<Jobs>,+    pub detection: RwLock<Detection>,+    /// The documents THIS SERVER PROCESS created and has not closed — what+    /// `swx_reset_workspace` may sweep and what the mutating verbs may change.+    ///+    /// An entry is (title, SOLIDWORKS session, path-once-saved). All three+    /// matter, and the first version had only the title:+    ///+    ///   * SOLIDWORKS names new documents `Part1`, `Part2`, `Assem1` — and it+    ///     RESTARTS that numbering with every session. A remembered `Part1`+    ///     would therefore match a fresh `Part1` the USER made after a restart,+    ///     and the bridge would treat their document as its own. Hence the+    ///     session (SOLIDWORKS' own process id): an entry from another session+    ///     is never owned.+    ///   * Titles were also forgotten only on the paths that run through this+    ///     bridge. A document closed in the SOLIDWORKS UI, by a crash, or by+    ///     `CloseAllDocuments` would linger as "ours" forever. So ownership is+    ///     additionally checked against what SOLIDWORKS reports as OPEN RIGHT+    ///     NOW, and stale entries are pruned there.+    ///+    /// The earlier comment claiming "a restart forgets" was false: the bridge+    /// server outlives SOLIDWORKS.+    pub scratch_docs: std::sync::Mutex<Vec<ScratchDoc>>,+}++/// Are these the same Windows path?+///+/// Windows paths are CASE-INSENSITIVE, and SOLIDWORKS normalises what it reports+/// — ask it to save `…\smoke.sldprt` and it will tell you the document lives at+/// `…\smoke.SLDPRT`. An exact string compare therefore said the bridge's own+/// freshly-saved scratch document was somebody else's: the ownership record kept+/// the path we ASKED for, the prune compared against the path SOLIDWORKS+/// REPORTED, they differed by one letter's case, and the bridge disowned its own+/// document and refused to clean it up.+///+/// Separators are normalised too, for the same reason: `\` and `/` both reach+/// the same file and a caller may write either.+pub fn same_path(a: &str, b: &str) -> bool {+    fn norm(s: &str) -> String {+        s.replace('/', "\\").to_lowercase()+    }+    !a.is_empty() && !b.is_empty() && norm(a) == norm(b)+}++/// One document this bridge created. See [`Ctx::scratch_docs`].+#[derive(Clone, Debug, PartialEq)]+pub struct ScratchDoc {+    pub title: String,+    /// SOLIDWORKS' own process id when this document was created. `None` means+    /// the session could not be read, which counts as NOT OWNED.+    pub session: Option<i64>,+    /// Filled in once saved, so a retitle is survivable.+    pub path: Option<String>,+}++/// The document a mutating verb is about to change, resolved ONCE on the server+/// and then handed to the com host EXPLICITLY.+///+/// This type exists because of a real defect. The ownership gate resolved a+/// target from `targetDocument`, but only `swx_run_script` forwarded that+/// argument — every other verb sent `path` (usually null), so the com host fell+/// back to ActiveDoc and changed a DIFFERENT document from the one the gate had+/// authorized. `swx_save_as {outputPath:"…", targetDocument:"Part1"}` renamed+/// and relocated the user's open part: the v0.2 data-loss bug, resurrected by+/// its own fix. Carrying the resolution through is the answer — whatever the+/// gate approved is exactly what the com host is told to act on.+#[derive(Clone, Debug)]+pub struct Target {+    pub title: String,+    pub path: Option<String>,+    pub owned: bool,+}++impl Target {+    /// The identity args every mutating verb must send. `docName` is a+    /// dedicated key precisely so it cannot collide with the `name` argument+    /// that means a DIMENSION on swx_set_parameter and a PREFERENCE on+    /// swx_set_preference.+    pub fn args(&self) -> Value {+        json!({"docName": self.title, "path": self.path})+    }++    /// How to name this document in a message to a human.+    pub fn describe(&self) -> String {+        match &self.path {+            Some(p) => format!("{} ({p})", self.title),+            None => format!("{} (unsaved)", self.title),+        }+    }+}++impl Ctx {+    pub fn new(detection: Detection) -> Self {+        Self {+            com: Arc::new(ComHost::new()),+            jobs: Jobs::new(),+            detection: RwLock::new(detection),+            scratch_docs: std::sync::Mutex::new(Vec::new()),+        }+    }++    /// Remember a document this bridge created, so the sweep may close it.+    pub(crate) fn remember_scratch(&self, title: &str, session: Option<i64>) {+        if title.is_empty() {+            return;+        }+        let mut v = self.scratch_docs.lock().unwrap_or_else(|e| e.into_inner());+        if !v.iter().any(|d| d.title == title && d.session == session) {+            v.push(ScratchDoc { title: title.to_string(), session, path: None });+        }+    }++    pub(crate) fn forget_scratch(&self, title: &str) {+        self.scratch_docs.lock().unwrap_or_else(|e| e.into_inner()).retain(|d| d.title != title);+    }++    /// A scratch document that has been saved keeps its identity under its new+    /// title, so `save_as` does not silently disown it.+    pub(crate) fn rename_scratch(&self, from: &str, to: &str, path: Option<String>) {+        let mut v = self.scratch_docs.lock().unwrap_or_else(|e| e.into_inner());+        if let Some(d) = v.iter_mut().find(|d| d.title == from) {+            d.title = to.to_string();+            d.path = path;+        }+    }++    /// Drop every entry that cannot still be ours: a different SOLIDWORKS+    /// session (its Part numbering restarts, so titles repeat), or a document+    /// that is no longer open at all.+    /// Drop every entry that cannot still be ours: a different SOLIDWORKS+    /// session, or a document that is no longer open. `open` is (title, path)+    /// for each open document — matched on PATH where the entry has one,+    /// because a title alone cannot tell two documents apart.+    pub(crate) fn prune_scratch(&self, session: Option<i64>, open: &[(String, Option<String>)]) {+        let mut v = self.scratch_docs.lock().unwrap_or_else(|e| e.into_inner());+        v.retain(|d| {+            d.session.is_some()+                && d.session == session+                && match &d.path {+                    Some(p) => open.iter().any(|(_, op)| op.as_deref() == Some(p.as_str())),+                    None => open.iter().any(|(t, op)| op.is_none() && *t == d.title),+                }+        });+    }++    /// (title, path) for every document currently believed to be ours — the+    /// PATH is what a caller must use to name one unambiguously.+    pub(crate) fn scratch_paths(&self) -> Vec<(String, Option<String>)> {+        self.scratch_docs+            .lock()+            .unwrap_or_else(|e| e.into_inner())+            .iter()+            .map(|d| (d.title.clone(), d.path.clone()))+            .collect()+    }++    /// Titles currently believed to be ours (as of the last prune).+    pub(crate) fn scratch_titles(&self) -> Vec<String> {+        self.scratch_docs+            .lock()+            .unwrap_or_else(|e| e.into_inner())+            .iter()+            .map(|d| d.title.clone())+            .collect()+    }++    /// FAIL CLOSED: with no session we cannot tell our `Part1` from the user's.+    ///+    /// A TITLE IS NOT AN IDENTITY. `C:\users\thing.sldprt` and+    /// `C:\bridge\thing.sldprt` are both titled `thing.sldprt`, and having two+    /// such documents open is ordinary. So when the document has a PATH, that is+    /// what ownership is decided on; the title only decides for a document that+    /// has never been saved, which cannot collide because SOLIDWORKS will not+    /// issue the same untitled name twice in one session.+    pub(crate) fn owns_doc(&self, title: &str, path: Option<&str>, session: Option<i64>) -> bool {+        if session.is_none() {+            return false;+        }+        let docs = self.scratch_docs.lock().unwrap_or_else(|e| e.into_inner());+        match path {+            Some(p) if !p.is_empty() => docs+                .iter()+                .any(|d| d.session == session && d.path.as_deref().map(|q| same_path(q, p)).unwrap_or(false)),+            _ => {+                if title.is_empty() {+                    return false;+                }+                // Unsaved: title + session, and ONLY against entries that are+                // themselves still unsaved. An entry we have since saved refers+                // to a file, not to whatever now carries its old name.+                docs.iter().any(|d| d.session == session && d.path.is_none() && d.title == title)+            }+        }+    }++    pub fn detection(&self) -> Detection {+        self.detection.read().unwrap_or_else(|e| e.into_inner()).clone()+    }++    pub(crate) fn redetect(&self) -> Detection {+        let fresh = detect();+        *self.detection.write().unwrap_or_else(|e| e.into_inner()) = fresh.clone();+        fresh+    }++    pub(crate) fn call(&self, cmd: &str, args: Value, secs: u64) -> Result<Value, SidecarError> {+        self.com.call(cmd, args, Duration::from_secs(secs))+    }+}++// ── response builders ───────────────────────────────────────────────────────++/// `{success:true, ...result, ...extras}` — extras win, exactly like the Python+/// `{"success": True, **r, "extra": ...}` this port replaces.+pub(crate) fn ok_merge(result: Value, extras: Value) -> Value {+    let mut out = Map::new();+    out.insert("success".into(), Value::Bool(true));+    for source in [result, extras] {+        if let Value::Object(map) = source {+            for (k, v) in map {+                out.insert(k, v);+            }+        }+    }+    Value::Object(out)+}++pub(crate) fn ok(extras: Value) -> Value {+    ok_merge(json!({}), extras)+}++pub(crate) fn err(message: impl Into<String>, hint: impl Into<String>) -> Value {+    json!({"success": false, "error": message.into(), "_hint": hint.into()})+}++pub(crate) fn err_code(code: &str, message: impl Into<String>, hint: impl Into<String>) -> Value {+    json!({"success": false, "errorCode": code, "error": message.into(), "_hint": hint.into()})+}++/// A failure that came back from the com host. `detail` is the host's stderr+/// tail — the difference between "it broke" and "here is what it said".+pub(crate) fn sidecar_error(e: SidecarError) -> Value {+    json!({+        "success": false,+        // The host's own code where it gave one, so a caller can branch instead+        // of pattern-matching prose. The live run returned four failures with+        // `errorCode: None` and nothing but a sentence.+        "errorCode": e.code,+        "error": e.message,+        "detail": e.detail,+        "_hint": "The COM host reported an error. If SOLIDWORKS is showing a modal dialog, \+                  dismiss it (or ask the user to) and retry; swx_status shows whether \+                  SOLIDWORKS is running and attached at all. The host process is restarted \+                  automatically on the next verb.",+    })+}++// ── the host-app gate ───────────────────────────────────────────────────────++/// Every COM-backed verb starts here: with SOLIDWORKS absent, fail fast with a+/// branchable code and the current install story, instead of a COM error the+/// caller cannot act on.+pub(crate) fn host_gate(ctx: &Ctx) -> Option<Value> {+    gate_for(crate::is_mock(), ctx.detection().installed)+}++/// May `swx_start` launch SOLIDWORKS?+///+/// Mock mode says yes so the suite can drive the launch path — EXCEPT under+/// `SWX_TEST_NO_LAUNCH`, which exists because the refusal branch is the one that+/// matters on the machine this bridge actually runs on, and it was previously+/// unreachable from any test on any platform. (A guard nothing can execute is+/// not a guard, it is a hope.)+pub fn may_launch(mock: bool, detection: &Detection) -> bool {+    if mock {+        return std::env::var("SWX_TEST_NO_LAUNCH").as_deref() != Ok("1");+    }+    detection.can_launch()+}++/// The gate itself, as a pure decision — the branch that matters most on a+/// machine where SOLIDWORKS has not arrived yet, and the one that cannot be+/// reached from a Linux test host any other way.+pub fn gate_for(mock: bool, installed: bool) -> Option<Value> {+    if mock || installed {+        return None; // the mock backend serves every verb+    }+    Some(err_code("host_app_not_installed", "SOLIDWORKS is not installed", TRIAL_HINT))+}++macro_rules! gate {+    ($ctx:expr) => {+        if let Some(g) = $crate::verbs::host_gate($ctx) {+            return g;+        }+    };+}+pub(crate) use gate;++pub(crate) fn arg_str<'a>(args: &'a Value, key: &str) -> Option<&'a str> {+    args.get(key).and_then(|v| v.as_str()).filter(|s| !s.is_empty())+}++pub(crate) fn arg_bool(args: &Value, key: &str, default: bool) -> bool {+    args.get(key).and_then(|v| v.as_bool()).unwrap_or(default)+}++/// Validate a caller-supplied destination path. A relay AI's `out` must not be+/// a relative path (which would resolve against the bridge's working directory —+/// a `../../victim` traversal off the desktop) and must not contain a `..`+/// component. An ABSOLUTE path is honoured: choosing where an export or a BOM+/// lands on one's own desktop is the whole point of `out`; escaping the process+/// cwd with a relative path is not.+pub(crate) fn safe_out(out: &str) -> Result<String, Value> {+    let path = std::path::Path::new(out);+    // A leading drive letter only counts as absolute when a separator FOLLOWS+    // the colon: `C:\x` / `C:/x` are rooted, but `C:foo` is DRIVE-RELATIVE (it+    // resolves against the cwd on drive C) and must be refused like any other+    // relative path.+    let drive_rooted = {+        let b = out.as_bytes();+        b.len() >= 3 && b[0].is_ascii_alphabetic() && b[1] == b':' && (b[2] == b'\\' || b[2] == b'/')+    };+    let absolute = path.is_absolute()+        || out.starts_with('\\') // UNC / rooted-from-current-drive on Windows+        || drive_rooted;+    if !absolute {+        return Err(err_code(+            "unsafe_path",+            format!("out must be an absolute path, got a relative one: {out}"),+            "Pass an absolute destination (e.g. C:\\\\exports\\\\part.step). A relative path \+             would resolve against the bridge's own working directory, which is a traversal \+             risk; omit `out` entirely to let the file land in the bridge's pruned exports cache.",+        ));+    }+    if path.components().any(|c| matches!(c, std::path::Component::ParentDir)) {+        return Err(err_code(+            "unsafe_path",+            format!("out must not contain a '..' component: {out}"),+            "Give a direct absolute path with no parent-directory traversal.",+        ));+    }+    Ok(out.to_string())+}++// ── verbs: bridge + detection ───────────────────────────────────────────────++fn swx_status(ctx: &Ctx, _args: &Value) -> Value {+    let detection = ctx.redetect();+    // swx_status is the declared statusVerb — ab tells callers to POLL it when a+    // long verb times out. So it must NOT block on the com host's request lock,+    // which a 580s Pack and Go could be holding. Read a non-blocking snapshot+    // first; only query the host for live COM state when it is actually idle.+    let snap = ctx.com.snapshot();+    let com = if snap.busy {+        json!({+            "busy": true,+            "hostPid": snap.pid,+            "inFlight": snap.in_flight,+            "note": "a long-running verb holds the COM host; poll swx_progress for its live frame",+        })+    } else {+        match ctx.call("status", json!({}), 20) {+            Ok(mut v) => {+                if let Value::Object(map) = &mut v {+                    // Post-call: the status query spawns the child if needed, so+                    // read the pid AFTER, not from the pre-call snapshot.+                    map.insert("hostPid".into(), json!(ctx.com.pid()));+                    map.insert("busy".into(), json!(false));+                }+                v+            }+            Err(e) => json!({"error": e.message, "hostPid": ctx.com.pid()}),+        }+    };+    let hint = if !detection.installed && !crate::is_mock() {+        TRIAL_HINT.to_string()+    } else {+        "swx_docs lists open documents; swx_open opens one (background). swx_bom / \+         swx_mass_properties / swx_interference are the analysis verbs; swx_find_files searches \+         disk without needing SOLIDWORKS open."+            .to_string()+    };+    ok(json!({+        "bridgeVersion": crate::BRIDGE_VERSION,+        "mock": crate::is_mock(),+        "userWrites": crate::writes::posture(),+        // Whether the ab-delegated verbs (window info, dialogs, screenshot,+        // taskbar badge, kill) can work at all. A bridge started by hand rather+        // than spawned by Adom Bridge never inherits ADOM_DIRECT_API_URL, and+        // every one of those verbs then fails for a reason that has nothing to+        // do with SOLIDWORKS.+        "abAvailable": crate::caller::ab_available(),+        "solidworks": detection.to_json(),+        "com": com,+        "windowEtiquette": "background",+        "_hint": hint,+    }))+}++fn swx_readiness(ctx: &Ctx, _args: &Value) -> Value {+    let d = ctx.detection();+    let ready = crate::is_mock() || d.installed;+    let hint = format!(+        "Read-only; never spawns SOLIDWORKS. {}",+        if ready {+            "Ready — swx_start launches the app when a verb needs it."+        } else {+            TRIAL_HINT+        }+    );+    ok(json!({+        "ready": ready,+        "installed": d.installed,+        "running": d.running,+        "mock": crate::is_mock(),+        "trialPending": !d.installed && !crate::is_mock(),+        "_hint": hint,+    }))+}++fn swx_state(ctx: &Ctx, args: &Value) -> Value {+    let detection = ctx.redetect();+    let mut docs = Value::Null;+    let mut active = Value::Null;+    let mut main_hwnd = Value::Null;+    let mut busy = Value::Null;+    if detection.running || crate::is_mock() {+        if let Ok(r) = ctx.call("app_state", json!({}), 30) {+            docs = r.get("documents").cloned().unwrap_or(Value::Null);+            active = r.get("activeDoc").cloned().unwrap_or(Value::Null);+            main_hwnd = r.get("mainHwnd").cloned().unwrap_or(Value::Null);+            busy = r.get("busy").cloned().unwrap_or(Value::Null);+        }+    }+    if docs.is_null() {+        docs = json!([]);+    }+    // The RENDER-ME half: a background screenshot plus the dialog census, which+    // is what makes one call enough to see what SOLIDWORKS is showing. Both go+    // through ab's generic verbs and neither is allowed to fail the verb.+    let want_shot = arg_bool(args, "screenshot", true);+    let hwnd_i64 = main_hwnd.as_i64();+    let (screenshot, dialogs) = if want_shot && (detection.running || crate::is_mock()) {+        let windows = crate::abwin::list_windows(Duration::from_secs(20)).unwrap_or_default();+        let sw_pid = ctx+            .call("app_state", json!({}), 20)+            .ok()+            .and_then(|s| s.get("processId").and_then(|p| p.as_i64()));+        let census = crate::abwin::dialog_census(&windows, hwnd_i64, sw_pid);+        let shot = hwnd_i64.map(|h| crate::abwin::screenshot(h, Duration::from_secs(45)));+        (shot.unwrap_or(Value::Null), census)+    } else {+        (Value::Null, Vec::new())+    };+    ok(json!({+        "running": detection.running,+        "solidworks": detection.to_json(),+        "openDocs": docs,+        "activeDoc": active,+        "activeDocument": active.get("title").cloned().unwrap_or(Value::Null),+        "mainHwnd": main_hwnd,+        "busy": busy,+        "blockingDialogs": dialogs,+        "screenshot": screenshot,+        "timings": crate::ledger::stages(),+        "focusEvents": [],+        "windowEtiquette": "background",+        "_hint": "The one-call render-me verb: detection + open documents + the active one + \+                  every blocking dialog + a BACKGROUND screenshot of the SOLIDWORKS window \+                  (PrintWindow, so it works occluded or minimised and steals no focus) + this \+                  machine's measured verb timings. screenshot:false skips the ab callbacks when \+                  you only want the logical state. focusEvents is always empty by design — this \+                  bridge never takes the user's focus, so there is nothing to audit.",+    }))+}++fn swx_progress(ctx: &Ctx, _args: &Value) -> Value {+    ok(json!({+        "active": ctx.jobs.active(),+        "_hint": "Empty active[] means idle. Poll ~1/s while a slow verb runs to drive a live \+                  bar; each frame carries phase, stepLabel, elapsedSec and etaSec. Slow verbs \+                  also return their own terminal frame (percent:100) when they finish.",+    }))+}++// ── verbs: app lifecycle ────────────────────────────────────────────────────++fn swx_start(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let detection = ctx.redetect();+    // ATTACH FIRST. If SOLIDWORKS is already up, this is the whole verb — and on+    // SOLIDWORKS Connected it is the ONLY thing that can work.+    if let Ok(r) = ctx.call("start", json!({"visible": arg_bool(args, "visible", true), "launch": false}), 60) {+        return ok_merge(+            r,+            json!({+                "wasLaunched": false,+                "edition": detection.edition(),+                "windowEtiquette": "background",+                "_hint": "Already running and COM-attached — nothing was launched. swx_open or \+                          swx_new_document next; swx_docs shows what is already loaded.",+            }),+        );+    }+    // Not running. Whether we may start it depends on the EDITION.+    //+    // LIVE FINDING (2026-09-02): on SOLIDWORKS Connected / 3DEXPERIENCE — which+    // includes "Design Professional for Makers" — CoCreateInstance spawns an+    // sldworks.exe that immediately refuses with "SOLIDWORKS Design must be+    // launched from the 3DEXPERIENCE Platform or from the desktop shortcut+    // created from the Platform" and never becomes a drivable COM server. It+    // leaves a modal on the user's screen and a useless process behind. So this+    // bridge does not try: it says who has to do it and why.+    // THE SANCTIONED ROUTE, if this machine has one. See+    // `detect::launch_route_from`: SOLIDWORKS Connected refuses a DIRECT+    // sldworks.exe launch, but the shortcut the 3DEXPERIENCE Platform installed+    // runs CATSTART -> SWXDesktopLauncher with that user's tenant and registry,+    // and that is the launch Dassault sanctions. Our earlier "cannot be launched+    // programmatically" was a conclusion about the wrong experiment.+    if let crate::detect::LaunchRoute::PlatformShortcut(shortcut) = detection.launch_route() {+        return start_via_shortcut(ctx, args, &detection, &shortcut);+    }+    if !may_launch(crate::is_mock(), &detection) {+        return err_code(+            "host_app_launch_blocked",+            format!(+                "SOLIDWORKS is not running, and this edition ({}) cannot be started \+                 programmatically",+                detection.edition()+            ),+            "SOLIDWORKS Connected / 3DEXPERIENCE (including Design Professional for Makers) \+             refuses any launch that did not come from the 3DEXPERIENCE Platform: a COM launch \+             spawns a process that puts up \"SOLIDWORKS Design must be launched from the \+             3DEXPERIENCE Platform\" and never attaches. ASK THE USER to start SOLIDWORKS from \+             the 3DEXPERIENCE Platform or its desktop shortcut, then retry — everything else in \+             this bridge works normally once it is up. Do not try to launch sldworks.exe by \+             hand; it produces exactly that modal. \+             \+             THIS BRIDGE CAN NORMALLY START A CONNECTED EDITION ITSELF, by invoking the \+             shortcut the Platform installed (CATSTART -> SWXDesktopLauncher, carrying the \+             tenant and registry it baked in). It is refusing here because it could not FIND \+             that shortcut — not because the edition cannot be launched. If the user has one, \+             point the bridge at it with SWX_SOLIDWORKS_SHORTCUT=<path to the .lnk> and retry; \+             swx_status reports `solidworks.shortcut` and `solidworks.launchRoute` so you can see \+             what it found. (Classic desktop SOLIDWORKS installs launch over COM and are not \+             affected.)",+        );+    }+    let job = ctx.jobs.start("app_start", "Starting SOLIDWORKS (cold start can take 30-90s)", 75);+    let started = std::time::Instant::now();+    match ctx.call("start", json!({"visible": arg_bool(args, "visible", true), "launch": true}), 280) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record_time("swx_start", started.elapsed().as_secs_f64());+            crate::ledger::record("solidworks_launched", json!({"edition": detection.edition()}));+            ok_merge(+                r,+                json!({+                    "edition": detection.edition(),+                    "windowEtiquette": "background",+                    "progress": job.finished(),+                    "_hint": "SOLIDWORKS is up (COM-attached). It opens on the user's desktop; \+                              the bridge does not foreground it. swx_open or swx_new_document \+                              next, or swx_docs to see what is already loaded.",+                }),+            )+        }+    }+}++/// `swx_start` on a machine whose SOLIDWORKS is started by the Platform's own+/// shortcut — which is every SOLIDWORKS Connected machine.+///+/// GATED AS A SESSION-STARTING ACTION: a `reason` and nothing more. It runs an+/// external process on the user's desktop, so it is recorded for them; but it+/// creates no document, writes no file and destroys no work, so it does not go+/// near the write choke point. That asymmetry with `swx_stop` — which is always+/// gated — is deliberate and it is the honest one: starting SOLIDWORKS is undone+/// by closing it, whereas stopping it was, until this route existed, not undoable+/// by this bridge at all.+fn start_via_shortcut(+    ctx: &Ctx,+    args: &Value,+    detection: &crate::detect::Detection,+    shortcut: &str,+) -> Value {+    if arg_str(args, "reason").is_none() {+        return err_code(+            "reason_required",+            "swx_start needs reason:\"why\" to launch SOLIDWORKS on the user's desktop",+            "This launches an application on somebody's machine — a window appears, and on a \+             Connected edition it signs in to their 3DEXPERIENCE tenant. The reason is written \+             for them: it appears in their Activity Log next to your AI thread name. Say what \+             you are about to do with SOLIDWORKS, in one line. Nothing else is required — \+             starting the application creates nothing and destroys nothing.",+        );+    }+    // A COLD CONNECTED START RUNS ONE TO THREE MINUTES. The request cannot be+    // held for that: the com host is the server's only channel to SOLIDWORKS, so+    // a long blocking call freezes swx_progress and every other verb along with+    // it. So this verb invokes the launcher, polls for a WHILE, and then answers+    // honestly that the launch is still in flight — the same shape fusion_start+    // uses, and the reason `stillLaunching` exists.+    let job = ctx.jobs.start(+        "app_start",+        "Starting SOLIDWORKS via the 3DEXPERIENCE launcher (cold start runs 1-3 minutes)",+        180,+    );+    let started = std::time::Instant::now();+    let invoked = match ctx.call("launch_shortcut", json!({"shortcut": shortcut}), 60) {+        Err(e) => return sidecar_error(e),+        Ok(r) => r,+    };+    crate::ledger::record(+        "solidworks_launched",+        json!({+            "edition": detection.edition(),+            "route": "platformShortcut",+            "shortcut": shortcut,+            "reason": arg_str(args, "reason"),+        }),+    );+    let mut attached = invoked.get("attached").and_then(|v| v.as_bool()).unwrap_or(false);+    let mut version = invoked.get("version").cloned().unwrap_or(Value::Null);+    // Poll for a BOUNDED window, then hand the wait back to the caller. Every+    // probe is an attach attempt (`launch:false`) and never a second launch:+    // firing the launcher twice is how a user ends up with two sign-in windows.+    //+    // The default is deliberately SHORT — shorter than any HTTP client's read+    // budget, because a verb that outlives the request that called it just looks+    // like a hang, and the first version of this waited 45 seconds and did+    // exactly that to its own test suite. A caller who has a longer budget and+    // wants to block can say so; nobody has to guess.+    let budget = std::time::Duration::from_secs(+        args.get("waitSeconds").and_then(|v| v.as_u64()).unwrap_or(20).min(240),+    );+    while !attached && started.elapsed() < budget {+        std::thread::sleep(std::time::Duration::from_secs(2));+        if let Ok(r) = ctx.call("start", json!({"visible": arg_bool(args, "visible", true), "launch": false}), 30) {+            attached = true;+            version = r.get("version").cloned().unwrap_or(Value::Null);+        }+    }+    if attached {+        crate::ledger::record_time("swx_start", started.elapsed().as_secs_f64());+    }+    ok_merge(+        invoked,+        json!({+            "started": true,+            "attached": attached,+            // NOT "started:false". The launch WAS made — the application is+            // coming up on the user's desktop. Reporting a failure here would+            // invite a caller to launch it again, which is the one thing that+            // must not happen.+            "stillLaunching": !attached,+            "wasLaunched": true,+            "version": version,+            "edition": detection.edition(),+            "launchRoute": "platformShortcut",+            "shortcut": shortcut,+            "elapsedSeconds": started.elapsed().as_secs(),+            "windowEtiquette": "background",+            "progress": job.finished(),+            "_hint": if attached {+                "SOLIDWORKS started via the 3DEXPERIENCE launcher and is COM-attached. \+                 swx_new_document or swx_open next."+            } else {+                "THE LAUNCH IS IN FLIGHT, not failed: the launcher was invoked and SOLIDWORKS \+                 is coming up, but it is not COM-attachable yet. A Connected cold start runs 1-3 \+                 minutes and may stop at a 3DEXPERIENCE sign-in the user has to answer. Poll \+                 swx_status (or call swx_start again, which ATTACHES to what is already coming \+                 up rather than launching a second copy) until running:true. Do NOT invoke the \+                 launcher any other way in the meantime — two launches means two sign-in \+                 windows on somebody's desktop. waitSeconds:<n> (up to 240) blocks here \+                 instead of polling, if your own budget allows it."+            },+        }),+    )+}++fn swx_stop(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    // Quitting a CAD application with unsaved work raises a save dialog that+    // nobody is there to answer — which is how SOLIDWORKS ends up wedged. Count+    // first, refuse loudly, and make `force` the caller's explicit decision.+    if !arg_bool(args, "force", false) {+        if let Ok(state) = ctx.call("app_state", json!({}), 20) {+            let unsaved = state.get("unsavedDocuments").and_then(|v| v.as_u64()).unwrap_or(0);+            if unsaved > 0 {+                return err_code(+                    "unsaved_documents",+                    format!("{unsaved} open document(s) have unsaved changes"),+                    "Quitting now makes SOLIDWORKS raise a \"Save changes?\" dialog with nobody \+                     to answer it, and the app hangs there. Save them (swx_save), close them \+                     (swx_close_doc), or pass force:true if the user has said the changes are \+                     disposable. swx_get_app_state names them.",+                );+            }+        }+    }+    let grant = match crate::writes::authorize_in(+        ctx,+        args,+        "swx_stop",+        crate::writes::Kind::EndSession,+        None,+        None,+    ) {+        Ok(g) => g,+        Err(e) => return e,+    };+    match ctx.call("stop", crate::writes::with_grant(json!({}), &grant), 60) {+        Err(e) => sidecar_error(e),+        // ASKED TO QUIT IS NOT QUIT. The host verifies by re-attaching, and a+        // re-attach that still succeeds means SOLIDWORKS is on screen — usually+        // because it is holding a "Save changes?" modal, or because a Connected+        // edition declined. That came back as `success:true, stopped:false` with+        // no code and no explanation, which reads as "fine" to a caller and to+        // an AI planning its next step. A verb that did not do the thing reports+        // a FAILURE, with why and what to do about it.+        Ok(r) if r.get("stopped").and_then(|v| v.as_bool()) == Some(false) => {+            let why = r.get("reason").and_then(|v| v.as_str()).unwrap_or("");+            let still = r.get("stillRunning").and_then(|v| v.as_bool()).unwrap_or(true);+            crate::ledger::record(+                "solidworks_stop_declined",+                json!({"forced": arg_bool(args, "force", false), "stillRunning": still, "reason": why}),+            );+            let mut out = err_code(+                if !still { "host_app_not_running" } else { "host_app_stop_declined" },+                if !still {+                    "SOLIDWORKS was not running, so there was nothing to stop".to_string()+                } else {+                    format!(+                        "SOLIDWORKS was asked to quit and is STILL RUNNING{}",+                        if why.is_empty() { String::new() } else { format!(" ({why})") }+                    )+                },+                if !still {+                    "Nothing changed. swx_status shows whether it is up."+                } else {+                    "ExitApp returned but a re-attach still succeeded, so the application did \+                     not go away. Almost always it is holding a modal nobody answered — a \+                     \"Save changes?\" on the way out. swx_get_app_state names the documents \+                     with unsaved changes and swx_blocking_dialogs shows what is on screen; \+                     save or close them, then retry. Do NOT reach for swx_kill to force it: \+                     that discards the unsaved work this dialog is asking about, and on a \+                     Connected edition this bridge cannot start SOLIDWORKS again."+                },+            );+            if let (Value::Object(m), Value::Object(r)) = (&mut out, r) {+                for (k, v) in r {+                    m.entry(k).or_insert(v);+                }+            }+            out+        }+        Ok(r) => {+            crate::ledger::record("solidworks_stopped", json!({"forced": arg_bool(args, "force", false)}));+            ok_merge(+                r,+                json!({+                    "_hint": "SOLIDWORKS was asked to quit properly. On SOLIDWORKS Connected \+                              this bridge CANNOT start it again — the user has to relaunch it \+                              from the 3DEXPERIENCE Platform — so do not stop it casually.",+                }),+            )+        }+    }+}++fn swx_docs(ctx: &Ctx, _args: &Value) -> Value {+    gate!(ctx);+    match ctx.call("docs", json!({}), 30) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "_hint": "Pass any doc's `path` to the analysis verbs to target it without \+                          activating it — no window changes, nothing steals focus.",+            }),+        ),+    }+}++// ── verbs: documents ────────────────────────────────────────────────────────++fn swx_open(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let path = match arg_str(args, "path") {+        Some(p) => p.to_string(),+        None => {+            return err(+                "path is required",+                "Pass the .sldprt/.sldasm/.slddrw path. swx_find_files locates candidates.",+            )+        }+    };+    let job = ctx.jobs.start(+        "open",+        format!("Opening {}", crate::comhost::mock::base_name(&path)),+        30,+    );+    // Whether opening a document may START SOLIDWORKS is the same decision+    // swx_start makes, and it is made in the same place.+    let may = may_launch(crate::is_mock(), &ctx.detection());+    // Ask the COM host whether it is running, not `detection` — detection is a+    // process scan, which is always false under the mock, and this branch is+    // exactly the one that must be reachable from a test.+    let running = ctx+        .call("status", json!({}), 20)+        .ok()+        .and_then(|s| s.get("running").and_then(|r| r.as_bool()))+        .unwrap_or(false);+    if !running && !may {+        return err_code(+            "host_app_launch_blocked",+            "SOLIDWORKS is not running, and this edition cannot be started programmatically",+            "swx_open will not launch it: on SOLIDWORKS Connected / 3DEXPERIENCE a programmatic \+             launch spawns a process that refuses with \"SOLIDWORKS Design must be launched from \+             the 3DEXPERIENCE Platform\" and never attaches, leaving a modal on the user's \+             screen. ASK THE USER to start SOLIDWORKS from the 3DEXPERIENCE Platform or its \+             desktop shortcut, then retry. Do not try to launch sldworks.exe by hand.",+        );+    }+    let read_only = arg_bool(args, "readOnly", true);+    // readOnly:false takes a WRITE LOCK on the user's file and converts-and-+    // dirties an older-version document in memory. That is a write, and it goes+    // through the same choke point as every other one.+    let mut open_grant = crate::writes::Grant { host_args: json!({}), user_write: false };+    if !read_only {+        let (session, _open, _active) = crate::verbs3::ownership_context(ctx);+        let owned = ctx.owns_doc("", Some(&path), session);+        let target = crate::verbs::Target {+            title: crate::comhost::mock::base_name(&path).to_string(),+            path: Some(path.clone()),+            owned,+        };+        open_grant = match crate::writes::authorize_in(+            ctx,+            args,+            "swx_open {readOnly:false}",+            crate::writes::Kind::ModifyDocument,+            Some(&target),+            None,+        ) {+            Ok(g) => g,+            Err(e) => return e,+        };+    }+    let mut call_args = crate::writes::with_grant(json!({}), &open_grant);+    if let Value::Object(m) = &mut call_args {+        m.insert("path".into(), Value::from(path.clone()));+        m.insert("configuration".into(), args.get("configuration").cloned().unwrap_or(Value::Null));+        m.insert("launch".into(), Value::Bool(may));+        m.insert("readOnly".into(), Value::Bool(read_only));+    }+    match ctx.call("open", call_args, 280) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "windowEtiquette": "background",+                "progress": job.finished(),+                "_hint": "Open and active, READ-ONLY by default — so the bridge does not hold a \+                          write lock on the user's file, and an older-version document is not \+                          converted-and-dirtied in memory just by being looked at. Pass \+                          readOnly:false if you intend to modify it (which also needs the write \+                          opt-in unless the bridge created it). swx_bom (assemblies), swx_mass_properties, \+                          swx_props_get, or swx_export next. NOTE: this verb does NOT start \+                          SOLIDWORKS on the 3DEXPERIENCE / Connected editions — it cannot, and \+                          answers host_app_launch_blocked instead. On a classic desktop install \+                          it will launch it, and the progress frame reports what that cost.",+            }),+        ),+    }+}++/// Is the target document dirty? `None` means WE DO NOT KNOW.+///+/// The distinction is the point. The previous version collapsed both "clean"+/// and "the COM call failed" into `false` with two `unwrap_or(false)`s, so a+/// SOLIDWORKS that would not answer produced a confident "nothing to lose here"+/// and the close proceeded unconfirmed. Unknown dirtiness is treated as DIRTY+/// by the caller.+fn doc_is_dirty(ctx: &Ctx, target: &crate::verbs::Target) -> Option<bool> {+    let docs = ctx.call("docs", json!({}), 30).ok()?;+    let list = docs.get("docs")?.as_array()?;+    let found = list.iter().find(|x| {+        x.get("title").and_then(|t| t.as_str()) == Some(target.title.as_str())+            && x.get("path").and_then(|p| p.as_str()).filter(|s| !s.is_empty()).map(String::from)+                == target.path+    })?;+    found.get("dirty")?.as_bool()+}++fn swx_close_doc(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    // `name` is this verb's Fusion-parity spelling for "the document, by title".+    // Feed it to the SAME resolver every other document verb uses, so an+    // ambiguous title is fatal here too and the com host is told exactly which+    // document to close — by PATH where there is one.+    let mut resolve_args = args.clone();+    if let Value::Object(m) = &mut resolve_args {+        if let Some(n) = args.get("name").cloned() {+            m.entry("targetDocument").or_insert(n);+        }+    }+    let target = match crate::verbs3::resolve_document(ctx, &resolve_args, "swx_close_doc") {+        Ok(t) => t,+        Err(e) => return e,+    };++    let save = arg_bool(args, "save", false);+    let confirmed = arg_bool(args, "confirm", false) && arg_str(args, "reason").is_some();+    let dirty = doc_is_dirty(ctx, &target);++    // TWO ways this verb can touch a document that is not ours, and BOTH need+    // permission. The first was missed for five rounds:+    //+    //   * `save:true` WRITES THE USER'S FILE. It is byte-for-byte the same+    //     `Save3` call that `swx_save` makes — and `swx_save` is gated. So+    //     `swx_props_set` (ungated by design) followed by+    //     `swx_close_doc {save:true}` modified their file on disk with no+    //     confirmation, no reason and no audit trail. That falsified the exact+    //     invariant both the docs and props_set's own `_hint` used to justify+    //     leaving props_set open: "nothing reaches the user's file until the+    //     save does". It only holds if EVERY persist route is gated.+    //   * `save:false` on a dirty document DISCARDS their work.+    // Closing a document the bridge did not create is a change to the user's+    // session — their window, their undo history — even when the document is+    // clean. Gated at the same choke point so the refusal comes from here with+    // a useful message rather than from the com host's terser veto.+    //+    // AND THE GRANT MUST REACH THE HOST. The result of this authorization used+    // to be DISCARDED — only the `save:true` branch produced a grant, so+    // `close_doc {save:false}` on a foreign document was authorized by the+    // server and then sent to the com host with no evidence of it. The host,+    // holding its own independent veto, refused. Live on 2026-09-03: Drew+    // authorized closing his own leftover documents, every argument was+    // correct, and the bridge still answered "this document was not created by+    // this bridge". The server has to TELL the host what the human allowed.+    let mut grant = crate::writes::Grant::none();+    if !target.owned {+        match crate::writes::authorize_in(+            ctx,+            args,+            "swx_close_doc",+            crate::writes::Kind::CloseDocument,+            Some(&target),+            None,+        ) {+            Ok(g) => grant.merge(g),+            Err(e) => return e,+        }+    }+    // save:true WRITES THE USER'S FILE — byte for byte the same `Save3` that+    // swx_save makes. It goes through the same choke point, and the union of+    // both grants is what the host is told.+    if save {+        match crate::writes::authorize_in(ctx, args, "swx_close_doc {save:true}", crate::writes::Kind::SaveInPlace, Some(&target), None) {+            Ok(g) => grant.merge(g),+            Err(e) => return e,+        }+    }+    // save:false on a document that is not ours DISCARDS work. Unknown+    // dirtiness is treated as dirty: an unanswerable question is not permission.+    if !save && !target.owned && dirty != Some(false) && !confirmed {+        let known = dirty == Some(true);+        return err_code(+            "unsaved_documents",+            format!(+                "'{}' {} and this bridge did not create it",+                target.describe(),+                if known {+                    "has unsaved changes"+                } else {+                    "may have unsaved changes (SOLIDWORKS would not say)"+                }+            ),+            "Closing it now would throw that work away. swx_save first, or pass confirm:true \+             WITH a reason if the user has said the changes are disposable. When SOLIDWORKS \+             cannot be asked whether a document is dirty, this verb assumes it IS. Documents \+             this bridge created (swx_new_document / swx_import) close without asking.",+        );+    }++    let mut call_args = crate::writes::with_grant(target.args(), &grant);+    if let Value::Object(m) = &mut call_args {+        m.insert("save".into(), Value::Bool(save));+    }+    match ctx.call("close_doc", call_args, 60) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            // A scratch document that is gone is no longer ours to sweep.+            ctx.forget_scratch(&target.title);+            // THE AUDIT TRAIL. Both docs promised one here and there was none —+            // a document promising an accountability record that does not exist+            // is worse than one that promises nothing.+            crate::ledger::record(+                "document_closed",+                json!({+                    "title": target.title,+                    "path": target.path,+                    "saved": save,+                    "bridgeCreated": target.owned,+                    "by": "close_doc",+                }),+            );+            if !target.owned && save {+                crate::ledger::record(+                    "user_document_saved",+                    json!({+                        "document": target.title,+                        "path": target.path,+                        "via": "swx_close_doc{save:true}",+                        "reason": arg_str(args, "reason"),+                    }),+                );+            }+            if !target.owned && !save && dirty != Some(false) {+                crate::ledger::record(+                    "user_document_changes_discarded",+                    json!({+                        "document": target.title,+                        "path": target.path,+                        "dirtyKnown": dirty.is_some(),+                        "reason": arg_str(args, "reason"),+                    }),+                );+            }+            ok_merge(+                r,+                json!({+                    "document": target.title,+                    "path": target.path,+                    "saved": save,+                    "bridgeCreatedDocument": target.owned,+                    "_hint": "Target it with `path` (unambiguous) or `name` (its title — NOT \+                              unique, so a title matching two open documents is refused with \+                              ambiguous_target); with neither, the ACTIVE document is closed. On \+                              a document this bridge did not create: save:true WRITES their file \+                              and needs confirm:true + reason (errorCode not_bridge_document), \+                              and save:false on one with unsaved changes needs the same \+                              (errorCode unsaved_documents). Every close is recorded in \+                              swx_action_ledger.",+                }),+            )+        }+    }+}++fn swx_save(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    // THE PERSIST STEP. swx_props_set stays ungated — it writes a named+    // metadata field the caller spelled out, in memory, and annotating the+    // user's parts with PartNo/Material is this bridge's core BOM workflow. But+    // that argument only holds while nothing can commit it to their file behind+    // their back, and this verb is what commits it. So the write to disk is+    // where the gate belongs.+    //+    // This tightens a v0.2 contract. It is a deliberate break, in the safe+    // direction: a caller that means it passes confirm:true and a reason, and+    // the change is recorded in swx_action_ledger.+    let target = match crate::verbs3::resolve_document(ctx, args, "swx_save") {+        Ok(t) => t,+        Err(e) => return e,+    };+    let grant = match crate::writes::authorize_in(ctx, args, "swx_save", crate::writes::Kind::SaveInPlace, Some(&target), None) {+        Ok(g) => g,+        Err(e) => return e,+    };+    let started = std::time::Instant::now();+    match ctx.call("save", crate::writes::with_grant(target.args(), &grant), 110) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record_time("swx_save", started.elapsed().as_secs_f64());+            if !target.owned {+                crate::ledger::record(+                    "user_document_saved",+                    json!({"document": target.title, "path": target.path}),+                );+            }+            ok_merge(+                r,+                json!({+                    "document": target.title,+                    "bridgeCreatedDocument": target.owned,+                    "_hint": "Saved in place. errors/warnings are SOLIDWORKS' own save codes — 0 \+                              means clean. This is the step that makes a swx_props_set permanent, \+                              which is why saving a document the bridge did not create needs \+                              confirm:true and a reason.",+                }),+            )+        }+    }+}++const EXPORT_FORMATS: &[(&str, &str)] = &[+    ("step", ".step"),+    ("stp", ".step"),+    ("iges", ".igs"),+    ("igs", ".igs"),+    ("stl", ".stl"),+    ("pdf", ".pdf"),+    ("dxf", ".dxf"),+    ("dwg", ".dwg"),+    ("png", ".png"),+    ("jpg", ".jpg"),+    ("parasolid", ".x_t"),+    // Added in v0.3 after exporting each one from a real solid on a live+    // SOLIDWORKS Design Professional for Makers 2026 and checking the bytes.+    ("x_t", ".x_t"),+    ("x_b", ".x_b"),+    ("sat", ".sat"),+    ("3mf", ".3mf"),+    ("glb", ".glb"),+    ("ply", ".ply"),+    ("amf", ".amf"),+    ("3dxml", ".3dxml"),+    ("tif", ".tif"),+    ("tiff", ".tif"),+    ("jpeg", ".jpg"),+    ("xaml", ".xaml"),+    // OBJ and U3D are listed NOT because they work — a live part refused both+    // with swFileSaveError_e 256 — but so the caller gets SOLIDWORKS' own,+    // accurate refusal ("format not supported for this document type") instead+    // of this bridge's generic "unsupported format", which would be a different+    // and less useful claim. Same reasoning as DXF/DWG, which are refused for a+    // part and expected to work from a drawing.+    ("obj", ".obj"),+    ("u3d", ".u3d"),+];++/// Destination extension for a requested format name.+pub fn export_extension(format: &str) -> Option<&'static str> {+    let f = format.trim().trim_start_matches('.').to_lowercase();+    EXPORT_FORMATS.iter().find(|(name, _)| *name == f).map(|(_, ext)| *ext)+}++fn swx_export(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let fmt = arg_str(args, "format").unwrap_or("step").trim().trim_start_matches('.').to_lowercase();+    // The `format` argument is checked for the friendly error, but it is NOT the+    // guard — SaveAs3 picks the format off the DESTINATION EXTENSION, so+    // `swx_export_step {outputPath:"x.wrl"}` would otherwise sail straight past+    // a check on `format` (and the per-format aliases hard-code `format`, so for+    // them it could never fire at all). The real guard is on `out`, below.+    if crate::verbs3::BLOCKED_FORMATS.contains(&fmt.as_str()) {+        return crate::verbs3::blocked_path_error(&format!("format:{fmt}"), &fmt);+    }+    let ext = match export_extension(&fmt) {+        Some(e) => e,+        None => {+            let known: Vec<&str> = EXPORT_FORMATS.iter().map(|(n, _)| *n).collect();+            let mut e = err(+                format!("unsupported format: {fmt}"),+                format!("Formats this bridge knows: {}.", known.join(", ")),+            );+            if let Value::Object(m) = &mut e {+                m.insert("formats".into(), crate::verbs3::export_format_note());+            }+            return e;+        }+    };+    let out = match arg_str(args, "outputPath").or_else(|| arg_str(args, "out")) {+        Some(o) => match safe_out(o) {+            Ok(p) => p,+            Err(e) => return e,+        },+        None => {+            let stem = crate::comhost::mock::file_stem(arg_str(args, "path").unwrap_or("export"));+            let stamp = std::time::SystemTime::now()+                .duration_since(std::time::UNIX_EPOCH)+                .map(|d| d.as_secs())+                .unwrap_or(0);+            crate::scratch::exports_dir()+                .join(format!("{stem}-{stamp}{ext}"))+                .to_string_lossy()+                .to_string()+        }+    };+    // THE guard: whatever `out` ends in is what SOLIDWORKS will try to write.+    if let Some(bad) = crate::verbs3::blocked_by_extension(&out) {+        return crate::verbs3::blocked_path_error(&out, bad);+    }+    // The extension actually written is `out`'s, which may differ from the+    // requested format name (e.g. format:"stp" -> .step) — echo the real one.+    let out_ext = std::path::Path::new(&out)+        .extension()+        .map(|e| format!(".{}", e.to_string_lossy().to_lowercase()))+        .unwrap_or_else(|| ext.to_string());+    crate::scratch::prune();+    // Copy mode, so this does not change the document — but it must still+    // EXPORT the document the caller named. `targetDocument` used to be+    // accepted and ignored here, which meant the file on disk could come from a+    // different model than the caller believed.+    let target = match crate::verbs3::resolve_document(ctx, args, "swx_export") {+        Ok(t) => t,+        Err(e) => return e,+    };+    let grant = match crate::writes::authorize_in(ctx, args, "swx_export", crate::writes::Kind::ExportCopy, Some(&target), Some(&out)) {+        Ok(g) => g,+        Err(e) => return e,+    };+    let mut call_args = crate::writes::with_grant(target.args(), &grant);+    if let Value::Object(m) = &mut call_args {+        m.insert("out".into(), Value::from(out.clone()));+    }+    let job = ctx.jobs.start("export", format!("Exporting {}", fmt.to_uppercase()), 45);+    match ctx.call("export", call_args, 280) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "format": fmt,+                "document": target.title,+                "outputExtension": out_ext,+                "formats": crate::verbs3::export_format_note(),+                "progress": job.finished(),+                "_hint": "Export written on the DESKTOP filesystem. From a cloud container, pull \+                          the bytes back with ab's file verbs (pull_file). Pass `out` to choose \+                          the path; without it the file lands in the bridge's own exports \+                          folder, which is pruned after 48h.",+            }),+        ),+    }+}++fn swx_pack_and_go(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let out = match arg_str(args, "out") {+        Some(o) => match safe_out(o) {+            Ok(p) => p,+            Err(e) => return e,+        },+        None => {+            return err(+                "out (destination directory) is required",+                "Pack and Go copies the doc plus every reference into `out` so the set is \+                 portable — that is the verb for handing a design to someone else.",+            )+        }+    };+    // Pack and Go writes MANY files into `out`. A destination that already has+    // content is refused for the same reason a single existing file is.+    let target = match crate::verbs3::resolve_document(ctx, args, "swx_pack_and_go") {+        Ok(t) => t,+        Err(e) => return e,+    };+    // M1: the server passed `destination:None` for an empty/absent directory,+    // which skipped the OWNERSHIP question entirely — so it allowed Pack and Go+    // on any document, while the real host refused it. The verb was dead on a+    // real machine and green in the suite. Both sides now ask the same question:+    // the document must be ours, and an occupied destination is an overwrite.+    // The two vetoes must ask the SAME question. The server asked "is the+    // directory non-empty?" while the host asked `Path::exists()`, so a+    // bridge-owned assembly into an existing EMPTY directory was granted by one+    // and refused by the other: fail-closed, but the verb was dead for its most+    // natural case and the two guards were answering different things. Both now+    // use existence, which is also the rule every other destination follows.+    let grant = match crate::writes::authorize_in(+        ctx,+        args,+        "swx_pack_and_go",+        crate::writes::Kind::CollectFiles,+        Some(&target),+        Some(out.as_str()),+    ) {+        Ok(g) => g,+        Err(e) => return e,+    };+    let job = ctx.jobs.start("pack_and_go", "Collecting references (Pack and Go)", 90);+    let mut call_args = crate::writes::with_grant(target.args(), &grant);+    if let Value::Object(m) = &mut call_args {+        m.insert("out".into(), Value::from(out.clone()));+        m.insert("includeDrawings".into(), Value::Bool(arg_bool(args, "includeDrawings", false)));+    }+    match ctx.call("pack_and_go", call_args, 580) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "progress": job.finished(),+                "_hint": "Statuses of 0 mean saved OK. The folder now holds a self-contained \+                          copy of the design. includeDrawings:true pulls the drawings in too.",+            }),+        ),+    }+}++// ── verbs: properties ───────────────────────────────────────────────────────++fn swx_props_get(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let target = match crate::verbs3::resolve_document(ctx, args, "swx_props_get") {+        Ok(t) => t,+        Err(e) => return e,+    };+    let mut call_args = target.args();+    if let Value::Object(m) = &mut call_args {+        m.insert("configuration".into(), args.get("configuration").cloned().unwrap_or_else(|| Value::from("")));+    }+    match ctx.call("props_get", call_args, 60) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "_hint": "File-level custom properties (the '' configuration) drive BOMs and \+                          title blocks. Pass configuration:<name> for config-specific ones; \+                          `configurations` lists what this document has.",+            }),+        ),+    }+}++fn swx_props_set(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let props = match args.get("properties").and_then(|p| p.as_object()) {+        Some(p) if !p.is_empty() => p.clone(),+        _ => {+            return err(+                "properties (object of name -> value) is required",+                r#"e.g. {"properties": {"PartNo": "BRK-100", "Material": "6061-T6"}}"#,+            )+        }+    };+    // props_set is not ownership-gated (see swx_save), but it MUST act on the+    // document the caller named rather than falling through to ActiveDoc — the+    // same resolution every document verb shares.+    //+    // It uses the READ resolver deliberately. An earlier version called the+    // gated one with a confirm and a reason THE BRIDGE WROTE FOR ITSELF+    // ("swx_props_set is in-memory until swx_save, which is gated"), which put+    // a self-authored justification into the user's audit trail — and one that+    // a close_doc{save:true} bypass then made false. A bridge does not get to+    // enter its own consent into the record.+    let target = match crate::verbs3::resolve_document(ctx, args, "swx_props_set") {+        Ok(t) => t,+        Err(e) => return e,+    };+    // C2: "in memory until a GATED save" ignored the persist route that is not+    // gated and never could be — THE USER. This leaves their document dirty, so+    // SOLIDWORKS prompts "Save changes?" on close and their own Ctrl+S writes+    // bridge-authored data into their file. Modifying their document is the+    // harm, whoever eventually commits it.+    let grant = match crate::writes::authorize_in(+        ctx,+        args,+        "swx_props_set",+        crate::writes::Kind::ModifyDocument,+        Some(&target),+        None,+    ) {+        Ok(g) => g,+        Err(e) => return e,+    };+    if !target.owned {+        crate::ledger::record(+            "user_document_properties_set",+            json!({+                "document": target.title,+                "path": target.path,+                "properties": props.keys().cloned().collect::<Vec<_>>(),+                "note": "in memory only; swx_save or swx_close_doc{save:true} would persist it, \+                         and both are gated",+            }),+        );+    }+    let mut call_args = crate::writes::with_grant(target.args(), &grant);+    if let Value::Object(m) = &mut call_args {+        m.insert("configuration".into(), args.get("configuration").cloned().unwrap_or_else(|| Value::from("")));+        m.insert("properties".into(), Value::Object(props));+    }+    match ctx.call("props_set", call_args, 60) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "_hint": "Properties are set in MEMORY — call swx_save to persist them to the \+                          file, or the next close discards them. That is also why this verb is \+                          not ownership-gated and swx_save is: nothing here reaches the user's \+                          file until the save does.",+            }),+        ),+    }+}++// ── verbs: analysis ─────────────────────────────────────────────────────────++fn swx_bom(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    // A BOM off the WRONG same-titled part is a bill of materials somebody+    // orders from — the exact harm the resolver exists to prevent, and this verb+    // was bypassing it.+    let target = match crate::verbs3::resolve_document(ctx, args, "swx_bom") {+        Ok(t) => t,+        Err(e) => return e,+    };+    let mut call_args = target.args();+    if let Value::Object(m) = &mut call_args {+        m.insert("topLevelOnly".into(), Value::Bool(arg_bool(args, "topLevelOnly", false)));+    }+    let (result, progress) = {+        let job = ctx.jobs.start("bom", "Walking assembly components", 60);+        match ctx.call("bom", call_args, 280) {+            Err(e) => return sidecar_error(e),+            Ok(r) => (r, job.finished()),+        }+    };++    let mut rows: Vec<Value> =+        result.get("rows").and_then(|r| r.as_array()).cloned().unwrap_or_default();+    crate::bom::sort_rows(&mut rows);+    let columns = crate::bom::prop_columns(&rows);++    let mut out = Map::new();+    out.insert("success".into(), Value::Bool(true));+    out.insert("doc".into(), result.get("doc").cloned().unwrap_or(Value::Null));+    out.insert("topLevelOnly".into(), result.get("topLevelOnly").cloned().unwrap_or(json!(false)));+    out.insert("rowCount".into(), json!(rows.len()));+    out.insert("rows".into(), Value::Array(rows.clone()));+    out.insert("progress".into(), progress);++    if arg_str(args, "format").unwrap_or("json").to_lowercase() == "csv" {+        let content = crate::bom::to_csv(&rows, &columns);+        out.insert("csv".into(), Value::from(content.clone()));+        let csv_path = match arg_str(args, "out") {+            Some(p) => match safe_out(p) {+                Ok(p) => p,+                Err(e) => return e,+            },+            None => {+                let doc_path = result+                    .get("doc")+                    .and_then(|d| d.get("path"))+                    .and_then(|p| p.as_str())+                    .unwrap_or("bom");+                let stamp = std::time::SystemTime::now()+                    .duration_since(std::time::UNIX_EPOCH)+                    .map(|d| d.as_secs())+                    .unwrap_or(0);+                crate::scratch::exports_dir()+                    .join(format!("{}-bom-{stamp}.csv", crate::comhost::mock::file_stem(doc_path)))+                    .to_string_lossy()+                    .to_string()+            }+        };+        // C1: this write is done by the SERVER (`std::fs::write`), so neither+        // the com host's veto nor `safe_out` — which only checks for an absolute+        // path with no `..` — stands between it and any file on disk. It+        // overwrote an existing file and reported success. It is the same+        // destination rule as every other write, so it goes through the same+        // choke point.+        if let Err(e) = crate::writes::authorize_in(+            ctx,+            args,+            "swx_bom {format:\"csv\"}",+            crate::writes::Kind::ExportCopy,+            None,+            Some(&csv_path),+        ) {+            return e;+        }+        crate::scratch::prune();+        match std::fs::write(&csv_path, content.as_bytes()) {+            Ok(()) => {+                out.insert("csvPath".into(), Value::from(csv_path));+            }+            Err(e) => {+                out.insert("csvWriteError".into(), Value::from(e.to_string()));+            }+        }+    }+    out.insert(+        "_hint".into(),+        Value::from(+            "Quantities aggregate resolved component instances per (file, configuration); \+             suppressed components are excluded. format:'csv' adds `csv` (the text) and \+             `csvPath` (a file on the DESKTOP disk), with one column per custom property found \+             anywhere in the tree. topLevelOnly:true gives the top-level-only view; the default \+             is the full flattened tree.",+        ),+    );+    Value::Object(out)+}++fn swx_mass_properties(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let target = match crate::verbs3::resolve_document(ctx, args, "swx_mass_properties") {+        Ok(t) => t,+        Err(e) => return e,+    };+    let mut call_args = target.args();+    if let Value::Object(m) = &mut call_args {+        m.insert("useSystemUnits".into(), Value::Bool(arg_bool(args, "useSystemUnits", true)));+    }+    match ctx.call("mass_properties", call_args, 110) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "_hint": "SI units: kg, m^3, m^2, m. Mass is only as good as the material \+                          assignment — a 0 or default density means no material is set on the \+                          model, so report the density alongside the mass.",+            }),+        ),+    }+}++fn swx_interference(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let job = ctx.jobs.start("interference", "Running interference detection", 90);+    let target = match crate::verbs3::resolve_document(ctx, args, "swx_interference") {+        Ok(t) => t,+        Err(e) => return e,+    };+    let mut call_args = target.args();+    if let Value::Object(m) = &mut call_args {+        m.insert("coincidenceCounts".into(), Value::Bool(arg_bool(args, "coincidenceCounts", false)));+    }+    match ctx.call("interference", call_args, 580) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "progress": job.finished(),+                "_hint": "count==0 means no interferences at the components' CURRENT positions \+                          — it is a snapshot, not a motion study. coincidenceCounts:true also \+                          flags touching faces (usually noise on a real assembly).",+            }),+        ),+    }+}++fn swx_rebuild_check(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let job = ctx.jobs.start("rebuild", "Force-rebuilding and scanning features", 45);+    let target = match crate::verbs3::resolve_document(ctx, args, "swx_rebuild_check") {+        Ok(t) => t,+        Err(e) => return e,+    };+    // C3: this calls `ForceRebuild3`, which re-solves every feature and dirties+    // the document — and which this bridge's OWN com_eval hazard list names as+    // "rebuilds the user's model". A first-class verb doing freely what the+    // escape hatch refuses is not a defensible split.+    let grant = match crate::writes::authorize_in(+        ctx,+        args,+        "swx_rebuild_check",+        crate::writes::Kind::ModifyDocument,+        Some(&target),+        None,+    ) {+        Ok(g) => g,+        Err(e) => return e,+    };+    match ctx.call("rebuild_check", crate::writes::with_grant(target.args(), &grant), 280) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "progress": job.finished(),+                "_hint": "errorCount==0 → the model rebuilds clean. featureErrors names the \+                          broken features — this is the design-health first check, and worth \+                          running before any BOM or mass number is quoted.",+            }),+        ),+    }+}++// ── verbs: files on disk ────────────────────────────────────────────────────++fn swx_find_files(_ctx: &Ctx, args: &Value) -> Value {+    let roots: Vec<String> = match args.get("roots").or_else(|| args.get("root")) {+        Some(Value::String(s)) => vec![s.clone()],+        Some(Value::Array(a)) => {+            a.iter().filter_map(|v| v.as_str()).map(|s| s.to_string()).collect()+        }+        _ => Vec::new(),+    };+    let roots = if roots.is_empty() { default_roots() } else { roots };++    // `types` accepts an array OR a bare string ("assembly"), matching Python's+    // acceptance; a lone string becomes a one-element list.+    let types: Option<Vec<String>> = match args.get("types") {+        Some(Value::String(s)) => Some(vec![s.clone()]),+        Some(Value::Array(a)) => {+            Some(a.iter().filter_map(|v| v.as_str()).map(|s| s.to_string()).collect())+        }+        _ => None,+    };+    let want = crate::findfiles::wanted_extensions(types.as_deref());+    let query = arg_str(args, "query").unwrap_or("");+    // `limit` accepts a number OR a numeric string ("50"), like Python's int().+    let limit = args+        .get("limit")+        .and_then(|v| v.as_u64().or_else(|| v.as_str().and_then(|s| s.parse().ok())))+        .unwrap_or(200)+        .max(1) as usize;++    let (hits, truncated) =+        crate::findfiles::search(&roots, &want, query, limit, Duration::from_secs(150));++    ok(json!({+        "count": hits.len(),+        "truncated": truncated,+        "roots": roots,+        "files": hits.iter().map(|h| h.to_json()).collect::<Vec<_>>(),+        "_hint": "Newest first. Pass roots:[...] to search specific folders, query:'name' to \+                  filter, types:['assembly'] to narrow (part/assembly/drawing). ~$ lock files \+                  are skipped. truncated:true means the limit or the 150s budget cut the walk \+                  short — narrow the roots. swx_open takes any of these paths, and this verb \+                  works with SOLIDWORKS closed or not installed.",+    }))+}++pub(crate) fn default_roots() -> Vec<String> {+    let home = std::env::var("USERPROFILE")+        .or_else(|_| std::env::var("HOME"))+        .unwrap_or_else(|_| ".".to_string());+    let home = std::path::Path::new(&home);+    vec![+        home.join("Documents").to_string_lossy().to_string(),+        home.join("Desktop").to_string_lossy().to_string(),+    ]+}++// ── verbs: escape hatch, screenshot, uninstall, describe ────────────────────++fn swx_screenshot(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    // A free-text `titleContains` forwarded straight to ab made this verb a+    // general desktop screenshot tool: `{"titleContains":"1Password"}` captured+    // whatever matched. It is catalogued as "screenshot the SOLIDWORKS window",+    // it is not gated, and a screenshot is the user's data.+    //+    // So: capture BY HANDLE, using the hwnd COM reports, which is the only+    // window this verb has any business looking at. An explicit `hwnd` is+    // honoured but must be one attributable to SOLIDWORKS.+    let (main, sw_pid) = crate::verbs3::window_identity_for(ctx);+    let want = args.get("hwnd").and_then(|v| v.as_i64());+    let hwnd = match want {+        Some(h) => {+            let ours = crate::abwin::list_windows(Duration::from_secs(20))+                .map(|all| crate::abwin::solidworks_windows(&all, main, sw_pid))+                .unwrap_or_default()+                .into_iter()+                .any(|w| w.get("hwnd").and_then(|x| x.as_i64()) == Some(h));+            if !ours && Some(h) != main {+                return err_code(+                    "window_not_attributed",+                    format!("hwnd {h} cannot be proved to belong to SOLIDWORKS"),+                    "This verb captures SOLIDWORKS' own windows. swx_window_info lists them with \+                     their handles. For anything else on the desktop, ab's own \+                     desktop_screenshot_window is the right tool and carries the user's approval \+                     prompt.",+                );+            }+            Some(h)+        }+        None => main,+    };+    let Some(hwnd) = hwnd else {+        return err_code(+            "no_solidworks_window",+            "SOLIDWORKS' window handle is not available",+            "COM reports the main window handle; with SOLIDWORKS closed there is nothing to \+             capture. swx_status says whether it is running.",+        );+    };+    let r = crate::caller::ad_callback(+        "desktop_screenshot_window",+        json!({"hwnd": hwnd}),+        Duration::from_secs(30),+    );+    // ab's response drives success. A present-but-null `error` is NOT a failure+    // (many verbs stamp "error":null on success), so only a non-null, non-empty+    // error counts against it.+    let has_error = matches!(r.get("error"), Some(Value::String(s)) if !s.is_empty());+    let ok_flag = r.get("success").and_then(|v| v.as_bool()).unwrap_or(true) && !has_error;+    json!({+        "success": ok_flag,+        "hwnd": hwnd,+        "ab": r,+        "_hint": "Delegates to ab's generic desktop_screenshot_window, BY HANDLE — the handle COM \+                  reports for SOLIDWORKS, or an explicit `hwnd` that swx_window_info attributes \+                  to it. It captures that window and the dialogs it owns, and nothing else on \+                  the desktop. SOLIDWORKS must be running; swx_state tells you whether it is.",+    })+}++fn swx_com_eval(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let expr = match arg_str(args, "expr") {+        Some(e) => e.to_string(),+        None => {+            return err(+                "expr is required",+                "A dotted call chain rooted at $sw (the SldWorks.Application) or $doc (the \+                 active document), e.g. \"$sw.RevisionNumber()\" or \+                 \"$doc.Extension.NeedsRebuild2()\". Arguments may be quoted strings, numbers \+                 or true/false.",+            )+        }+    };+    // THE SIXTH ROAD. `$doc.SaveAs3("C:\\x.wrl",0,1)` reaches the COM member+    // directly, skipping the guarded `save_as3` helper and every rule above it:+    // the blocked-extension check, Copy mode, and the ownership gate. It is the+    // exact call that hung SOLIDWORKS for 110 seconds. So the escape hatch is+    // for PROTOTYPING READS — a mutation belongs in a real verb, where the+    // guards live.+    if let Some((bad, why)) = crate::comhost::expr::refused_member(&expr) {+        return err_code(+            "eval_member_blocked",+            format!("swx_com_eval will not call '{bad}': {why}"),+            "This verb evaluates READS ONLY — an allowlist, not a list of banned members. \+             Anything beginning Get/Is/Has/Can/Enum is allowed, plus a short list of navigation \+             and scalar properties; everything else is refused, INCLUDING members nobody has \+             thought about yet. That is deliberate: a denylist has to anticipate every dangerous \+             member of an API with thousands, and the first version missed SendMsgToUser2 (a \+             modal on the user's screen that wedges the host), SetUserPreferenceToggle and \+             ForceRebuild3. Reaching a write here would also bypass every guard the real verbs \+             enforce — the blocked-extension check, Copy mode, and the ownership gate. If you \+             have proved a mutation is right, it belongs in a verb; if a genuine READ is \+             refused, add it to expr.rs READ_MEMBERS. File either on the bridge's wiki page.",+        );+    }+    if arg_str(args, "reason").is_none() {+        return err_code(+            "reason_required",+            "swx_com_eval drives the live SOLIDWORKS COM object directly; pass reason:\"why\"",+            "This verb exists to prototype new capabilities against a real install before they \+             become real verbs. The reason is self-asserted and used for the log, not for \+             authorization.",+        );+    }+    match ctx.call("eval", json!({"expr": expr}), 110) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "_hint": "Late-bound IDispatch call chain, evaluated on the com host. If what \+                          you just proved out is useful, it belongs in a real verb — file it on \+                          the bridge's wiki page.",+            }),+        ),+    }+}++fn swx_uninstall(ctx: &Ctx, args: &Value) -> Value {+    // shutdown() is contention-safe (kills by pid if a long verb holds the+    // lock), so the cascade cannot hang here.+    ctx.com.shutdown();+    let mut removed: Vec<String> = vec!["com host process".to_string()];++    // ONLY the bridge's own exports subtree, best-effort per item — never the+    // cache root ab unzipped the running exe into.+    let (mut artifacts, failed) = crate::scratch::remove_artifacts();+    removed.append(&mut artifacts);++    json!({+        "success": failed.is_empty(),+        "removed": removed,+        "failed": failed,+        "cascade": arg_bool(args, "cascade", false),+        "ledgerPreserved": true,+        "_hint": "Idempotent, non-interactive, best-effort. The bridge writes only its own \+                  exports cache, so that subtree is all this removes — the ab cache root, \+                  SOLIDWORKS itself, its settings and every user document are never touched. A \+                  file still locked open is reported in `failed`, not fought over. \+                  swx_action_ledger's log is DELIBERATELY KEPT: this verb is ungated (ab calls \+                  it on app uninstall), so deleting the audit trail here would let a caller \+                  erase the record of what it did by asking the bridge to tidy up. Removing the \+                  folder is the user's to do.",+    })+}++// ── the catalog ─────────────────────────────────────────────────────────────++/// (verb, risk, summary). The one place the surface is declared — `swx_describe`+/// renders it, dispatch routes from it, and the test suite checks it against+/// bridge.json in both directions.+pub const CATALOG: &[(&str, &str, &str)] = &[+    ("swx_bom", "write", "assembly BOM: quantities per (file, configuration) + custom props; json or csv (csv writes a file)"),+    ("swx_close_doc", "exec", "close a document (save:true to save first; a dirty document the bridge did not create needs confirm:true)"),+    ("swx_com_eval", "exec", "maintainer escape hatch: a late-bound COM call chain on the live app"),+    ("swx_describe", "read", "this catalog"),+    ("swx_docs", "read", "list open documents"),+    ("swx_export", "write", "export by format name or destination extension: STEP/IGES/STL/3MF/GLB/SAT/X_T/X_B/PLY/AMF/3DXML/PDF/PNG/JPG/TIF (DXF/DWG from drawings; VRML refused)"),+    ("swx_find_files", "read", "search disk for .sldprt/.sldasm/.slddrw (works without SOLIDWORKS)"),+    ("swx_interference", "read", "assembly interference detection"),+    ("swx_mass_properties", "read", "mass/volume/area/CoM/density (SI units)"),+    ("swx_open", "exec", "open a document silently (part/assembly/drawing)"),+    ("swx_pack_and_go", "write", "copy a design + all references into a folder"),+    ("swx_progress", "read", "active[] progress blocks for in-flight slow verbs"),+    ("swx_props_get", "read", "read custom properties (file or configuration scope)"),+    ("swx_props_set", "write", "write custom properties (swx_save to persist)"),+    ("swx_readiness", "read", "read-only ready check; never spawns anything"),+    ("swx_rebuild_check", "exec", "force rebuild + broken-feature census (design health)"),+    ("swx_save", "write", "save the target document"),+    ("swx_screenshot", "read", "screenshot the SOLIDWORKS window via ab's generic verb"),+    ("swx_start", "process", "launch SOLIDWORKS via COM (background; cold start 30-90s)"),+    ("swx_state", "read", "open docs + active doc + detection (logical state of the union)"),+    ("swx_status", "read", "bridge + SOLIDWORKS detection + COM state (the everyday probe)"),+    ("swx_stop", "process", "quit SOLIDWORKS"),+    ("swx_uninstall", "write", "remove the bridge's own artifacts (ab calls this on app uninstall)"),++    // ── v0.3: the Fusion-parity surface ─────────────────────────────────────+    ("swx_new_document", "exec", "create a NEW part/assembly/drawing from the stock template"),+    ("swx_import", "exec", "import STEP/IGES/Parasolid/STL as a new document"),+    ("swx_save_as", "write", "save the document to a new path; the default RENAMES the open document, so one the bridge did not create needs confirm:true"),+    ("swx_get_app_state", "read", "running + active document + documents + workspace + busy, in one call"),+    ("swx_document_info", "read", "metadata for one document (name, type, saved, configurations)"),+    ("swx_activate_document", "exec", "make an open document the active one"),+    ("swx_close_all_documents", "exec", "close EVERY open document (confirm:true; skips unsaved by default)"),+    ("swx_reset_workspace", "exec", "close only the scratch documents this bridge created"),+    ("swx_kill", "process", "force-kill SOLIDWORKS (reason + confirm; discards unsaved work)"),+    ("swx_window_info", "read", "SOLIDWORKS' windows and its main hwnd (read-only, nothing raised)"),+    ("swx_dismiss_blocking_dialogs", "exec", "census of blocking SOLIDWORKS dialogs; close:true is opt-in, gated, and never touches an unattributed window"),+    ("swx_close_window", "exec", "close one window by hwnd (reason + confirm)"),+    ("swx_check_recovery", "read", "is SOLIDWORKS showing the Document Recovery dialog?"),+    ("swx_action_ledger", "read", "append-only record of what the bridge did in the background"),+    ("swx_verb_times", "read", "measured per-verb timings on THIS machine (count/p50/p90)"),+    ("swx_set_driving_badge", "write", "sticky taskbar badge showing an AI is driving SOLIDWORKS"),+    ("swx_design_info", "read", "features/sketches/bodies/components/material/rebuild state"),+    ("swx_get_parameters", "read", "global variables + named model dimensions"),+    ("swx_set_parameter", "write", "drive one named dimension (valueMm or value) and rebuild"),+    ("swx_inspect_bodies", "read", "per-body geometry read-back in millimetres (bbox, volume, area, faces)"),+    ("swx_run_macro", "exec", "run a SOLIDWORKS VBA macro (.swp/.swb/.dll) — arbitrary code, so it needs the write opt-in every time"),+    ("swx_run_script", "exec", "the modeling DSL: new_part/sketch_rect/extrude/set_material/save_as (refuses to build into a document the bridge did not create)"),+    ("swx_add_component", "write", "insert part/assembly files as components of an assembly, positioned in mm (the verb swx_bom needs)"),+    ("swx_get_preferences", "read", "the small set of preferences this bridge can round-trip"),+    ("swx_set_preference", "write", "write one preference and READ IT BACK to verify"),+    ("swx_cloud_status", "read", "3DEXPERIENCE cloud reachability (spoiler: no COM route exists)"),+    ("swx_show_part", "exec", "open + activate + zoom-to-fit a part, in the background"),+    ("swx_show_assembly", "exec", "open + activate + zoom-to-fit an assembly, in the background"),+    ("swx_show_drawing", "exec", "open + activate + zoom-to-fit a drawing, in the background"),+    ("swx_export_step", "write", "export STEP (fusion_export_step parity: outputPath)"),+    ("swx_export_iges", "write", "export IGES"),+    ("swx_export_stl", "write", "export STL mesh"),+    ("swx_export_3mf", "write", "export 3MF"),+    ("swx_export_glb", "write", "export GLB (binary glTF)"),+    ("swx_export_sat", "write", "export ACIS SAT"),+    ("swx_export_parasolid", "write", "export Parasolid (.x_t)"),+    ("swx_export_pdf", "write", "export PDF (3D PDF from a part; a sheet from a drawing)"),+    ("swx_export_dxf", "write", "export DXF (drawings; refused for a part on this edition)"),+    ("swx_export_dwg", "write", "export DWG (drawings; refused for a part on this edition)"),+];++fn swx_describe(_ctx: &Ctx, _args: &Value) -> Value {+    let verbs: Vec<Value> = CATALOG+        .iter()+        .map(|(verb, risk, summary)| json!({"verb": verb, "summary": summary, "risk": risk}))+        .collect();+    ok(json!({+        "bridge": "solidworks",+        "keyword": "swx",+        "version": crate::BRIDGE_VERSION,+        "mock": crate::is_mock(),+        "verbs": verbs,+        "scriptOps": crate::script::OPS,+        "exportFormats": crate::verbs3::export_format_note(),+        "userWrites": crate::writes::posture(),+        "writePolicy": "DENY BY DEFAULT. This bridge writes only to documents it created itself \+                        (swx_new_document / swx_import) and to destination paths that do not \+                        exist yet. Touching the user's documents, or overwriting an existing \+                        file, requires the bridge process to be started with \+                        SWX_ALLOW_USER_WRITES=1 AND the call to carry allowUserWrites:true, \+                        confirm:true and a reason. An AI cannot grant this to itself; ask the \+                        user. Every exception is recorded in swx_action_ledger.",+        "_hint": "Say 'swx' to reach this bridge. Everyday flow: swx_status → swx_find_files → \+                  swx_open → swx_bom / swx_mass_properties / swx_export. To MAKE something: \+                  swx_new_document → swx_run_script → swx_inspect_bodies → swx_save_as. \+                  swx_get_app_state is the poll-me verb, swx_state the render-me one. Verb names \+                  and arg names mirror the Fusion 360 bridge (`outputPath`, `filePath`, `name`, \+                  `parameters`, `bodies`) so fusion_* knowledge transfers directly; \+                  docs/FUSION-PARITY-REPORT.md records exactly where the two diverge and why. \+                  Every verb returns its own _hint; that is the documentation that matters.",+    }))+}++// ── dispatch ────────────────────────────────────────────────────────────────++pub fn is_known(command: &str) -> bool {+    CATALOG.iter().any(|(v, _, _)| *v == command)+}++/// Route one verb. Unknown commands answer with the full valid list — a caller+/// that guessed a name gets the surface back instead of a dead end.+pub fn dispatch(ctx: &Ctx, command: &str, args: &Value) -> Value {+    // Test-only fault injection (debug builds only, never in the shipped exe):+    // lets the suite prove a handler panic is caught by the HTTP worker and+    // turned into JSON, with the worker still serving afterwards.+    #[cfg(debug_assertions)]+    if std::env::var("SWX_TEST_PANIC").ok().as_deref() == Some(command) {+        panic!("test-induced panic in {command}");+    }++    let handler: fn(&Ctx, &Value) -> Value = match command {+        "swx_status" => swx_status,+        "swx_readiness" => swx_readiness,+        "swx_describe" => swx_describe,+        "swx_state" => swx_state,+        "swx_progress" => swx_progress,+        "swx_start" => swx_start,+        "swx_stop" => swx_stop,+        "swx_docs" => swx_docs,+        "swx_find_files" => swx_find_files,+        "swx_open" => swx_open,+        "swx_close_doc" => swx_close_doc,+        "swx_save" => swx_save,+        "swx_export" => swx_export,+        "swx_pack_and_go" => swx_pack_and_go,+        "swx_props_get" => swx_props_get,+        "swx_props_set" => swx_props_set,+        "swx_bom" => swx_bom,+        "swx_mass_properties" => swx_mass_properties,+        "swx_interference" => swx_interference,+        "swx_rebuild_check" => swx_rebuild_check,+        "swx_screenshot" => swx_screenshot,+        "swx_com_eval" => swx_com_eval,+        "swx_uninstall" => swx_uninstall,++        // v0.3+        "swx_new_document" => crate::verbs3::new_document,+        "swx_import" => crate::verbs3::import,+        "swx_save_as" => crate::verbs3::save_as,+        "swx_get_app_state" => crate::verbs3::get_app_state,+        "swx_document_info" => crate::verbs3::document_info,+        "swx_activate_document" => crate::verbs3::activate_document,+        "swx_close_all_documents" => crate::verbs3::close_all_documents,+        "swx_reset_workspace" => crate::verbs3::reset_workspace,+        "swx_kill" => crate::verbs3::kill,+        "swx_window_info" => crate::verbs3::window_info,+        "swx_dismiss_blocking_dialogs" => crate::verbs3::dismiss_blocking_dialogs,+        "swx_close_window" => crate::verbs3::close_window,+        "swx_check_recovery" => crate::verbs3::check_recovery,+        "swx_action_ledger" => crate::verbs3::action_ledger,+        "swx_verb_times" => crate::verbs3::verb_times,+        "swx_set_driving_badge" => crate::verbs3::set_driving_badge,+        "swx_design_info" => crate::verbs3::design_info,+        "swx_get_parameters" => crate::verbs3::get_parameters,+        "swx_set_parameter" => crate::verbs3::set_parameter,+        "swx_inspect_bodies" => crate::verbs3::inspect_bodies,+        "swx_run_macro" => crate::verbs3::run_macro,+        "swx_run_script" => crate::verbs3::run_script,+        "swx_add_component" => crate::verbs3::add_component,+        "swx_get_preferences" => crate::verbs3::get_preferences,+        "swx_set_preference" => crate::verbs3::set_preference,+        "swx_cloud_status" => crate::verbs3::cloud_status,+        "swx_show_part" => return crate::verbs3::show(ctx, args, "part"),+        "swx_show_assembly" => return crate::verbs3::show(ctx, args, "assembly"),+        "swx_show_drawing" => return crate::verbs3::show(ctx, args, "drawing"),+        "swx_export_step" => return crate::verbs3::export_as(ctx, args, "step"),+        "swx_export_iges" => return crate::verbs3::export_as(ctx, args, "iges"),+        "swx_export_stl" => return crate::verbs3::export_as(ctx, args, "stl"),+        "swx_export_3mf" => return crate::verbs3::export_as(ctx, args, "3mf"),+        "swx_export_glb" => return crate::verbs3::export_as(ctx, args, "glb"),+        "swx_export_sat" => return crate::verbs3::export_as(ctx, args, "sat"),+        "swx_export_parasolid" => return crate::verbs3::export_as(ctx, args, "parasolid"),+        "swx_export_pdf" => return crate::verbs3::export_as(ctx, args, "pdf"),+        "swx_export_dxf" => return crate::verbs3::export_as(ctx, args, "dxf"),+        "swx_export_dwg" => return crate::verbs3::export_as(ctx, args, "dwg"),++        other => {+            let valid: Vec<&str> = CATALOG.iter().map(|(v, _, _)| *v).collect();+            return json!({+                "success": false,+                "error": format!("Unknown command: {other}"),+                "_hint": format!("Valid swx commands: {}.", valid.join(", ")),+                "_reportIssues": report_issues(),+            });+        }+    };++    let mut out = handler(ctx, args);+    // A failure always tells the caller how to report it — real machines are+    // the only place the COM layer can actually be proven.+    if out.get("success").and_then(|v| v.as_bool()) == Some(false) {+        if let Value::Object(map) = &mut out {+            map.entry("_reportIssues").or_insert_with(|| Value::from(report_issues()));+        }+    }+    out+}++#[cfg(test)]+mod tests {+    use super::*;++    #[test]+    fn every_catalog_verb_is_unique_prefixed_and_dispatchable() {+        let mut names: Vec<&str> = CATALOG.iter().map(|(v, _, _)| *v).collect();+        let total = names.len();+        assert!(total >= 60, "v0.3 ships the Fusion-parity surface, got {total}");+        names.sort();+        names.dedup();+        assert_eq!(names.len(), total, "duplicate verb in the catalog");+        for (v, _, _) in CATALOG {+            assert!(is_known(v));+            assert!(v.starts_with("swx_"), "{v} must carry the bridge's prefix");+        }+    }++    #[test]+    fn export_extensions_cover_the_documented_formats() {+        for f in ["step", "STP", ".iges", "stl", "pdf", "dxf", "dwg", "png", "jpg", "parasolid"] {+            assert!(export_extension(f).is_some(), "{f}");+        }+        assert_eq!(export_extension("step"), Some(".step"));+        assert_eq!(export_extension("parasolid"), Some(".x_t"));+        assert_eq!(export_extension("wat"), None);+    }++    #[test]+    fn the_host_gate_only_blocks_a_real_machine_without_solidworks() {+        assert!(gate_for(true, false).is_none(), "mock mode serves every verb");+        assert!(gate_for(false, true).is_none(), "an installed host app is not gated");+        let blocked = gate_for(false, false).expect("no SOLIDWORKS, no mock => gated");+        assert_eq!(blocked["success"], false);+        assert_eq!(blocked["errorCode"], "host_app_not_installed");+        let hint = blocked["_hint"].as_str().unwrap();+        assert!(hint.contains("Hawk Ridge"), "the hint must carry the current install story");+        assert!(+            hint.contains("Do NOT tell the user to install it by hand"),+            "the hint must stop the AI inventing an install path"+        );+    }++    #[test]+    fn safe_out_allows_absolute_and_refuses_traversal() {+        assert!(safe_out("/home/u/part.step").is_ok());+        assert!(safe_out(r"C:\exports\part.step").is_ok());+        assert!(safe_out("C:/exports/part.step").is_ok());+        assert!(safe_out(r"\\server\share\part.step").is_ok());+        // relative → rejected (would resolve against the bridge cwd)+        assert!(safe_out("part.step").is_err());+        assert!(safe_out("../../victim.txt").is_err());+        // drive-RELATIVE (colon, no separator) → rejected: C:foo resolves against+        // the cwd on drive C, it is not rooted.+        assert!(safe_out("C:foo.step").is_err());+        assert!(safe_out("C:..\\victim").is_err());+        // absolute-but-with-.. → rejected+        assert!(safe_out("/home/u/../../etc/passwd").is_err());+    }++    #[test]+    fn only_a_launchable_edition_gets_past_may_launch() {+        let desktop = Detection {+            installed: true,+            shortcut: None,+            exe: Some(r"C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\SLDWORKS.exe".into()),+            registry_versions: vec![],+            running: false,+            launcher_present: false,+        };+        let connected = Detection {+            exe: Some(r"C:\Program Files\Dassault Systemes\SOLIDWORKS 3DEXPERIENCE R2026x\SOLIDWORKS\SLDWORKS.exe".into()),+            ..desktop.clone()+        };+        let unknown = Detection { exe: Some(r"D:\odd\SLDWORKS.exe".into()), ..desktop.clone() };+        assert!(may_launch(false, &desktop));+        assert!(!may_launch(false, &connected), "Connected editions refuse a programmatic launch");+        assert!(!may_launch(false, &unknown), "an unrecognised layout must fail safe");+        assert!(may_launch(true, &connected), "the mock app is launchable so the suite can drive it");+    }++    #[test]+    fn the_scratch_registry_is_scoped_to_one_solidworks_session() {+        let ctx = Ctx::new(Detection::default());+        let s1 = Some(4242i64); // one SOLIDWORKS session+        let s2 = Some(9999i64); // ...and the one after it restarted+        assert!(ctx.scratch_titles().is_empty(), "a fresh process owns nothing");++        ctx.remember_scratch("Part1", s1);+        ctx.remember_scratch("Part1", s1); // idempotent+        ctx.remember_scratch("Assem1", s1);+        ctx.remember_scratch("", s1); // an empty title is not a document+        assert_eq!(ctx.scratch_titles(), vec!["Part1".to_string(), "Assem1".to_string()]);+        assert!(ctx.owns_doc("Part1", None, s1));++        // THE bug this exists to stop: SOLIDWORKS restarts its Part numbering+        // every session, so a remembered "Part1" would otherwise match a fresh+        // "Part1" the USER made, and the bridge would treat their document as+        // its own.+        assert!(!ctx.owns_doc("Part1", None, s2), "a title from another session is NOT ours");+        // ...and with no session at all we cannot tell the difference, so: no.+        assert!(!ctx.owns_doc("Part1", None, None), "an unknown session must fail CLOSED");++        // Pruning drops entries from another session, and entries for documents+        // that are no longer open — which is what covers a close in the+        // SOLIDWORKS UI, a crash, or CloseAllDocuments, none of which run+        // through this bridge.+        let open = |t: &str| vec![(t.to_string(), None)];+        ctx.prune_scratch(s1, &open("Part1"));+        assert_eq!(ctx.scratch_titles(), vec!["Part1".to_string()], "Assem1 is no longer open");+        ctx.prune_scratch(s2, &open("Part1"));+        assert!(ctx.scratch_titles().is_empty(), "a new session invalidates everything");++        // An EMPTY path is no path. The live run turned on exactly this+        // distinction: SOLIDWORKS reports "" for an unsaved document, and a+        // `Some("")` where `None` was expected made it unaddressable.+        assert!(+            !ctx.owns_doc("Part1", Some(""), s1) || ctx.owns_doc("Part1", None, s1),+            "an empty path must be treated as no path"+        );+        ctx.remember_scratch("PartX", s1);+        assert!(ctx.owns_doc("PartX", Some(""), s1), "empty path => fall back to the title");+        assert!(ctx.owns_doc("PartX", None, s1), "...same as no path at all");+        ctx.forget_scratch("PartX");++        // A save_as retitles a document; our claim on it must survive, and it+        // becomes a claim on the PATH.+        ctx.remember_scratch("Part2", s1);+        ctx.rename_scratch("Part2", "bracket.SLDPRT", Some("C:\\p\\bracket.sldprt".into()));+        assert!(ctx.owns_doc("bracket.SLDPRT", Some("C:\\p\\bracket.sldprt"), s1));+        assert!(!ctx.owns_doc("Part2", None, s1));++        // THE title-collision case. Once a document of ours has a path, a+        // DIFFERENT document that merely shares its title is not ours — two+        // folders each holding a `bracket.SLDPRT` is an ordinary thing to have+        // open, and treating the title as the identity is how a save_as once+        // renamed the user's document instead of the bridge's.+        assert!(+            !ctx.owns_doc("bracket.SLDPRT", Some("C:\\users\\bracket.sldprt"), s1),+            "same title, different path => NOT ours"+        );+        assert!(+            !ctx.owns_doc("bracket.SLDPRT", None, s1),+            "an unsaved document is never matched by a claim on a saved one"+        );++        ctx.forget_scratch("bracket.SLDPRT");+        assert!(ctx.scratch_titles().is_empty());+        ctx.forget_scratch("SomeoneElsesPart1"); // a no-op, not a panic+    }++    #[test]+    fn ok_merge_lets_extras_win_over_host_result() {+        let merged = ok_merge(json!({"a": 1, "b": 2}), json!({"b": 3}));+        assert_eq!(merged["success"], true);+        assert_eq!(merged["a"], 1);+        assert_eq!(merged["b"], 3);+    }+}
src/verbs3.rsadded+1942
@@ -0,0 +1,1942 @@+//! The v0.3 verbs — SOLIDWORKS' answer to the Fusion 360 bridge's surface.+//!+//! Arg names and response keys deliberately MIRROR `fusion_*` wherever the+//! concept survives the translation (`outputPath`, `filePath`, `name`,+//! `parameters`, `bodies`, `current`, `applied`, `actions`, `stages`,+//! `wouldPrompt`, `closed`, `remaining`), so an AI that already knows how to+//! drive Fusion can drive SOLIDWORKS without relearning the vocabulary. Where+//! the concept does NOT survive — Fusion's Python scripting host, its cloud file+//! store, its programmatic install — the verb says so in its own `_hint` rather+//! than pretending, and `docs/FUSION-PARITY-REPORT.md` carries the long form.+//!+//! Everything here that talks to SOLIDWORKS goes through the same com-host+//! child as v0.2; everything that talks to a WINDOW goes through ab's generic+//! desktop verbs (this bridge owns no window code).++use crate::verbs::{+    Target,+    arg_bool, arg_str, err, err_code, gate, ok, ok_merge, safe_out, sidecar_error, Ctx,+};+use serde_json::{json, Value};+use std::time::Duration;++const AB_TIMEOUT: Duration = Duration::from_secs(30);++/// A gated verb's `reason` check. Self-asserted, used for the log and the+/// user's Activity Log — never for authorization (the SDK's rule, not ours).+fn require_reason(args: &Value, verb: &str, why: &str) -> Option<Value> {+    if arg_str(args, "reason").is_some() {+        return None;+    }+    Some(err_code(+        "reason_required",+        format!("{verb} needs reason:\"why\" — {why}"),+        "The reason is written for the human who owns this desktop: it appears in their Activity \+         Log next to your AI thread name. Say what you are doing and why, in one line.",+    ))+}++fn require_confirm(args: &Value, verb: &str, what: &str) -> Option<Value> {+    if arg_bool(args, "confirm", false) {+        return None;+    }+    Some(err_code(+        "confirm_required",+        format!("{verb} would {what} — pass confirm:true to go ahead"),+        "This verb changes something the user cannot get back by rerunning a read verb, so it \+         asks once. Nothing has happened yet.",+    ))+}++/// One `app_state` call, giving everything the ownership decision needs: which+/// SOLIDWORKS session this is, what is open in it, and which document is active.+pub(crate) fn ownership_context(ctx: &Ctx) -> (Option<i64>, Vec<Value>, Option<String>) {+    match ctx.call("app_state", json!({}), 30) {+        Ok(s) => (+            s.get("processId").and_then(|v| v.as_i64()),+            s.get("documents").and_then(|d| d.as_array()).cloned().unwrap_or_default(),+            s.get("activeDocument").and_then(|t| t.as_str()).map(String::from),+        ),+        Err(_) => (None, Vec::new(), None),+    }+}++/// (title, path) for each open document — what pruning and ambiguity checks need.+pub(crate) fn open_identities(open: &[Value]) -> Vec<(String, Option<String>)> {+    open.iter()+        .map(|d| {+            (+                d.get("title").and_then(|t| t.as_str()).unwrap_or("").to_string(),+                d.get("path").and_then(|p| p.as_str()).filter(|s| !s.is_empty()).map(String::from),+            )+        })+        .collect()+}++fn doc_title(d: &Value) -> String {+    d.get("title").and_then(|t| t.as_str()).unwrap_or("").to_string()+}++fn doc_path(d: &Value) -> Option<String> {+    d.get("path").and_then(|p| p.as_str()).filter(|s| !s.is_empty()).map(String::from)+}++/// Resolve WHICH DOCUMENT a verb is aimed at. Identity only — permission is+/// [`crate::writes::authorize`]'s job, and separating the two is what stopped+/// five rounds of "this route forgot to check".+///+/// Every document-addressing verb goes through here, read or write, because+/// acting on the wrong document is the harm either way: a BOM off the wrong+/// same-titled part is a bill of materials somebody will order from.+///+/// Order: explicit `targetDocument` (a TITLE), then `path`, then the active+/// document. A title matching more than one open document is `ambiguous_target`;+/// so is a PATH matching more than one, because `save_as` can put two open+/// documents at the same path. A `targetDocument` naming nothing open is an+/// error, never a silent fall back.+pub(crate) fn resolve_document(ctx: &Ctx, args: &Value, verb: &str) -> Result<Target, Value> {+    let (session, open, active) = ownership_context(ctx);+    ctx.prune_scratch(session, &open_identities(&open));+    resolve_target_inner(ctx, args, verb, session, &open, active.as_deref())+}++#[allow(clippy::too_many_arguments)]+fn resolve_target_inner(+    ctx: &Ctx,+    args: &Value,+    verb: &str,+    session: Option<i64>,+    open: &[Value],+    active: Option<&str>,+) -> Result<Target, Value> {+    // One pass over a list read ONCE. An earlier version called swx_docs from+    // inside the match closure — a COM round trip per open document, each+    // re-reading the ACTIVE document, which follows window focus. A click+    // mid-scan could match document i against an active document that was only+    // current at iteration i.+    let ambiguous = |title: &str| -> Value {+        let places: Vec<Value> = open+            .iter()+            .filter(|d| doc_title(d) == title)+            .map(|d| json!({"title": doc_title(d), "path": doc_path(d)}))+            .collect();+        err_code(+            "ambiguous_target",+            format!("{verb}: {} open documents are titled '{title}'", places.len()),+            "A title is not an identity — two folders can each hold a file of that name, and              SOLIDWORKS will hand back whichever it finds first. Pass `path` with the full              filename of the one you mean. `candidates` lists them.",+        )+        .as_object()+        .map(|m| {+            let mut m = m.clone();+            m.insert("candidates".into(), Value::Array(places));+            Value::Object(m)+        })+        .unwrap_or(Value::Null)+    };++    let by_title = |t: &str| -> Result<Option<Value>, Value> {+        let hits: Vec<&Value> = open.iter().filter(|d| doc_title(d) == t).collect();+        match hits.len() {+            0 => Ok(None),+            1 => Ok(Some(hits[0].clone())),+            _ => Err(ambiguous(t)),+        }+    };+    // M1: `.find()` took the first match, so ambiguity was enforced on TITLE+    // only — and `save_as` can put two open documents at the same path, which+    // makes round 4's defect re-expressible with the very key that replaced it.+    let by_path = |p: &str| -> Result<Option<Value>, Value> {+        let hits: Vec<&Value> = open+            .iter()+            .filter(|d| doc_path(d).as_deref().map(|q| crate::verbs::same_path(q, p)).unwrap_or(false))+            .collect();+        match hits.len() {+            0 => Ok(None),+            1 => Ok(Some(hits[0].clone())),+            _ => Err(err_code(+                "ambiguous_target",+                format!("{verb}: {} open documents share the path '{p}'", hits.len()),+                "Two open documents report the same path, which SOLIDWORKS permits after a \+                 save_as. Close one, or name the document you mean with targetDocument.",+            )),+        }+    };++    let wanted = arg_str(args, "targetDocument");+    let path_arg = arg_str(args, "path");+    let doc = match (wanted, path_arg) {+        (Some(t), Some(p)) => {+            let a = by_title(t)?;+            let b = by_path(p)?;+            let same = a.as_ref().map(doc_title) == b.as_ref().map(doc_title)+                && a.as_ref().and_then(doc_path) == b.as_ref().and_then(doc_path);+            if !same {+                return Err(err_code(+                    "ambiguous_target",+                    format!("{verb} was given targetDocument:'{t}' AND path:'{p}', which name different documents"),+                    "Pass one or the other. Naming a document two ways and letting the bridge                      pick is exactly how a change lands somewhere the caller did not intend.",+                ));+            }+            a+        }+        (Some(t), None) => match by_title(t)? {+            Some(d) => Some(d),+            None => {+                return Err(err_code(+                    "document_not_open",+                    format!("{verb}: no open document is titled '{t}'"),+                    "swx_docs lists the open titles AND their paths. This is an ERROR rather                      than a fall back to the active document ON PURPOSE: silently retargeting a                      rename or a rebuild onto whatever the user happens to have in front of them                      is the failure this argument exists to prevent.",+                ));+            }+        },+        (None, Some(p)) => by_path(p)?,+        (None, None) => match active {+            Some(t) => by_title(t)?,+            None => None,+        },+    };+    let Some(doc) = doc else {+        return Err(err_code(+            "no_target_document",+            format!("{verb}: no document to act on"),+            "Open one (swx_open), create one (swx_new_document), or name one with              targetDocument (a title) or path (unambiguous). Nothing was changed.",+        ));+    };+    let title = doc_title(&doc);+    let path = doc_path(&doc);+    let owned = ctx.owns_doc(&title, path.as_deref(), session);+    Ok(Target { title, path, owned })+}++/// The COM-reported main window handle, or None. Cheap, and the only way to+/// attribute a desktop window to SOLIDWORKS with certainty.+fn main_hwnd(ctx: &Ctx) -> Option<i64> {+    window_identity(ctx).0+}++/// (main window handle, SOLIDWORKS process id) — the two facts that let a+/// desktop window be ATTRIBUTED rather than guessed at.+pub(crate) fn window_identity_for(ctx: &Ctx) -> (Option<i64>, Option<i64>) {+    window_identity(ctx)+}++fn window_identity(ctx: &Ctx) -> (Option<i64>, Option<i64>) {+    match ctx.call("app_state", json!({}), 20) {+        Ok(v) => (+            v.get("mainHwnd").and_then(|h| h.as_i64()),+            v.get("processId").and_then(|p| p.as_i64()),+        ),+        Err(_) => (None, None),+    }+}++// ── lifecycle & app state ───────────────────────────────────────────────────++/// `swx_get_app_state` — the everyday "what is SOLIDWORKS doing" probe, in the+/// `fusion_get_app_state` shape plus the facts an MCAD caller actually needs.+pub fn get_app_state(ctx: &Ctx, _args: &Value) -> Value {+    gate!(ctx);+    let detection = ctx.detection();+    match ctx.call("app_state", json!({}), 30) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({+                "solidworks": detection.to_json(),+                "windowEtiquette": "background",+                "_hint": "running/activeDocument/documents/workspace/busy in one call — the \+                          verb to poll while something long runs. `workspace` is the active \+                          document's type (part/assembly/drawing/none), the closest thing \+                          SOLIDWORKS has to Fusion's workspaces. `unsavedDocuments` > 0 means \+                          a close or a quit would raise a dialog nobody is there to answer.",+            }),+        ),+    }+}++/// `swx_document_info` — metadata for one document.+pub fn document_info(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let target = match resolve_document(ctx, args, "swx_document_info") {+        Ok(t) => t,+        Err(e) => return e,+    };+    match ctx.call("document_info", target.args(), 60) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(+            r,+            json!({"_hint": "isSaved:false means the document has never been written to disk — \+                             SOLIDWORKS reports no path for those, and closing one without \+                             swx_save_as loses it. `configurations` is what swx_props_get and \+                             swx_bom can be scoped to."}),+        ),+    }+}++/// `swx_activate_document` — make an open document the active one.+pub fn activate_document(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let name = match arg_str(args, "name").or_else(|| arg_str(args, "path")) {+        Some(n) => n.to_string(),+        None => {+            return err(+                "name is required",+                "The document TITLE as swx_docs reports it (e.g. \"bracket.SLDPRT\"). Most \+                 analysis verbs take `path` instead and need no activation at all — activating \+                 changes what the user sees, targeting by path does not.",+            )+        }+    };+    match ctx.call("activate_document", json!({"name": name}), 110) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record("document_activated", json!({"name": r.get("activeDocument")}));+            ok_merge(+                r,+                json!({+                    "windowEtiquette": "background",+                    "_hint": "Activation changes which document the user is looking at. Prefer \+                              passing `path` to the analysis verbs when you only need to READ \+                              something — that touches nothing on screen.",+                }),+            )+        }+    }+}++/// `swx_close_all_documents` — destructive, so it is confirm-gated.+pub fn close_all_documents(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    if let Some(g) = require_confirm(args, "swx_close_all_documents", "close EVERY open SOLIDWORKS document, including ones the user opened themselves") {+        return g;+    }+    let close_unsaved = arg_bool(args, "closeUnsaved", false);+    // `closeUnsaved:true` DISCARDS work. A single dirty document needs confirm+    // on swx_close_doc; it would be incoherent for one flag here to throw away+    // every dirty document the user has, with no reason recorded and no+    // per-document accounting. So the destructive form is gated harder, and+    // dirty documents the bridge did not create are NOT discarded at all —+    // they are closed one at a time only when they are ours.+    if close_unsaved {+        if let Some(g) = require_reason(args, "swx_close_all_documents {closeUnsaved:true}", "this discards unsaved work in every open document") {+            return g;+        }+    }+    // AUTHORIZE BEFORE ACTING. This check used to sit AFTER the loop below, so+    // in the default posture the verb closed the bridge's own dirty documents+    // and THEN returned a refusal — side effects on the way to "no". The grant+    // it produces is also what the per-document closes need, so there was never+    // a reason for it to be second.+    let grant = match crate::writes::authorize_in(+        ctx,+        args,+        "swx_close_all_documents",+        crate::writes::Kind::EndSession,+        None,+        None,+    ) {+        Ok(g) => g,+        Err(e) => return e,+    };+    let (session, open, _active) = ownership_context(ctx);+    ctx.prune_scratch(session, &open_identities(&open));++    // A document SOLIDWORKS will not answer for is treated as dirty. `dirty`+    // absent or null used to be read as clean via `unwrap_or(false)`, so such a+    // document never entered the loop below, `CloseAllDocuments(false)` then+    // left it alone because it needed saving, and it came back in the host's+    // `remaining` with no per-document explanation anywhere in the response.+    // That is the same rule swx_close_doc already applies: an unanswerable+    // question is not permission.+    let dirty: Vec<&Value> = open+        .iter()+        .filter(|d| d.get("dirty").and_then(|x| x.as_bool()) != Some(false))+        .collect();+    let mut skipped = Vec::new();+    let mut discarded = Vec::new();+    if close_unsaved {+        // Close the dirty documents individually, then let CloseAllDocuments+        // take the clean remainder. OURS close without asking; the USER'S are+        // spared unless the full opt-in is present — and when it IS present,+        // they close, because refusing what the human explicitly authorized is+        // not safety. Live on 2026-09-03 this branch skipped them+        // unconditionally, so `closeUnsaved:true` with the opt-in closed 3 of 5+        // documents and left two behind.+        for d in &dirty {+            let title = d.get("title").and_then(|t| t.as_str()).unwrap_or("").to_string();+            let path = d.get("path").and_then(|p| p.as_str()).filter(|s| !s.is_empty());+            let owned = ctx.owns_doc(&title, path, session);+            // NO SECOND SERVER-SIDE CHECK HERE, and the reason is worth stating:+            // reaching this line already required the FULL opt-in (the+            // session-ending grant above), which is the identical condition a+            // per-document `Kind::CloseDocument` check would apply. Writing that+            // check anyway would have looked like a guard while being incapable+            // of ever refusing — a branch no test could reach, which is exactly+            // the kind of decoration that made five rounds of review necessary.+            // What DOES still guard this is the com host, whose record of the+            // documents it created is its own; a refusal from there lands in+            // `skipped` below.+            let call_args = crate::writes::with_grant(+                json!({"docName": title.clone(), "path": path, "save": false}),+                &grant,+            );+            match ctx.call("close_doc", call_args, 60) {+                Ok(_) => {+                    ctx.forget_scratch(&title);+                    crate::ledger::record(+                        "document_closed",+                        json!({"title": title, "bridgeCreated": owned, "by": "close_all_documents"}),+                    );+                    if !owned {+                        crate::ledger::record(+                            "user_document_changes_discarded",+                            json!({"document": title, "path": path, "via": "swx_close_all_documents", "reason": arg_str(args, "reason")}),+                        );+                    }+                    discarded.push(title);+                }+                Err(e) => skipped.push(json!({+                    "title": title,+                    "path": path,+                    "bridgeCreated": owned,+                    "errorCode": e.code,+                    "why": e.message,+                })),+            }+        }+    }+    // Whatever is left is closed WITHOUT discarding anything: CloseAllDocuments+    // (false) leaves documents that still need saving alone.+    match ctx.call("close_all_documents", crate::writes::with_grant(json!({"closeUnsaved": false}), &grant), 110) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            // ACCOUNT FOR EVERY DOCUMENT STILL OPEN. `CloseAllDocuments(false)`+            // silently leaves anything that needs saving, and the host reports+            // those in `remaining` — a bare list, with no reason attached and no+            // relation to `skipped`. A caller reading a successful response saw+            // documents left behind and nothing saying why. So whatever the host+            // says is still open and is not already in `skipped` gets an entry+            // here, from the host's own after-the-fact view rather than from the+            // server's expectations.+            let named: Vec<String> = skipped+                .iter()+                .filter_map(|s: &Value| s.get("title").and_then(|t| t.as_str()).map(str::to_string))+                .collect();+            for d in r.get("remaining").and_then(|v| v.as_array()).cloned().unwrap_or_default() {+                let title = d.get("title").and_then(|t| t.as_str()).unwrap_or("").to_string();+                if named.iter().any(|n| *n == title) {+                    continue;+                }+                let dirty = d.get("dirty").and_then(|x| x.as_bool());+                skipped.push(json!({+                    "title": title,+                    "path": d.get("path").cloned(),+                    "dirty": dirty,+                    "why": if dirty == Some(true) {+                        "still open: SOLIDWORKS does not close a document with unsaved changes, \+                         and closeUnsaved was not set for it"+                    } else {+                        "still open after CloseAllDocuments — SOLIDWORKS declined to close it \+                         (a document being edited in place, or one held by a modal)"+                    },+                }));+            }+            crate::ledger::record(+                "close_all_documents",+                json!({+                    "closeUnsaved": close_unsaved,+                    "discarded": discarded,+                    "skipped": skipped.len(),+                    "reason": arg_str(args, "reason"),+                }),+            );+            let mut out = ok_merge(r, json!({+                "closeUnsaved": close_unsaved,+                "discarded": discarded,+                "skipped": skipped,+                "_hint": "Unsaved work is discarded ONLY with closeUnsaved:true, which needs \+                          the process-level write opt-in, confirm:true and a reason — the same \+                          bar as any other write to the user's data, and every discarded \+                          document is named in the ledger with that reason. Without it, \+                          documents needing a save are left alone and listed in `skipped`, \+                          which accounts for EVERY document still open when this returns. \+                          Throwing away somebody's unsaved model because a script wanted a \+                          clean slate is not a decision to make casually; swx_reset_workspace \+                          closes only what the bridge created and needs none of this.",+            }));+            if let Value::Object(m) = &mut out {+                m.remove("closedAll");+            }+            out+        }+    }+}++/// `swx_reset_workspace` — close the scratch documents THIS BRIDGE created, and+/// nothing else. The ledger is what makes that possible: a document the bridge+/// did not create is never in it, so it is never closed here.+pub fn reset_workspace(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    // PRUNE FIRST. Ownership is scoped to a SOLIDWORKS session and to documents+    // that are still open; without this the reported list (and the sweep) could+    // name a title from a previous session — which, since SOLIDWORKS restarts+    // its Part numbering, might now be the USER's document.+    let (session, open_docs, _active) = ownership_context(ctx);+    ctx.prune_scratch(session, &open_identities(&open_docs));++    let only: Option<Vec<String>> = args.get("titles").and_then(|v| v.as_array()).map(|a| {+        a.iter().filter_map(|v| v.as_str()).map(String::from).collect()+    });+    let force = arg_bool(args, "force", false);+    let mut closed = Vec::new();+    let mut skipped = Vec::new();+    for doc in &open_docs {+        let title = doc.get("title").and_then(|t| t.as_str()).unwrap_or("").to_string();+        let path = doc.get("path").and_then(|p| p.as_str()).filter(|s| !s.is_empty());+        let saved = path.is_some();+        // owns_doc, not owns: once a document has a path THAT is its identity,+        // and a different file that merely shares its title is not ours.+        if !ctx.owns_doc(&title, path, session) {+            skipped.push(json!({"title": title, "why": "not created by this bridge in this SOLIDWORKS session"}));+            continue;+        }+        if let Some(want) = &only {+            if !want.contains(&title) {+                skipped.push(json!({"title": title, "why": "ours, but not named in titles[]"}));+                continue;+            }+        }+        if saved && !force {+            skipped.push(json!({"title": title, "why": "has been saved to disk; pass force:true"}));+            continue;+        }+        match ctx.call("close_doc", json!({"docName": title.clone(), "path": path, "save": false}), 60) {+            Ok(_) => {+                crate::ledger::record("document_closed", json!({"title": title, "by": "reset_workspace"}));+                ctx.forget_scratch(&title);+                closed.push(title);+            }+            Err(e) => skipped.push(json!({"title": title, "why": e.message})),+        }+    }+    let remaining = ctx+        .call("docs", json!({}), 30)+        .ok()+        .and_then(|r| r.get("docs").cloned())+        .unwrap_or_else(|| json!([]));+    ok(json!({+        "closed": closed,+        "untitledScratchClosed": closed.len(),+        "skipped": skipped,+        "remaining": remaining,+        "force": force,+        "solidworksSession": session,+        "trackedScratchDocuments": ctx.scratch_titles(),+        "_hint": "Closes ONLY documents this bridge created IN THIS SOLIDWORKS SESSION and has \+                  not saved. Ownership is scoped to the session because SOLIDWORKS restarts its \+                  Part1/Assem1 numbering every time it starts — a title remembered across a \+                  restart would eventually match a document the USER made. Entries are also \+                  dropped when the document stops being open at all, which covers a close in \+                  the SOLIDWORKS UI, a crash, and CloseAllDocuments. `skipped` says why each \+                  survivor survived; titles:[...] to be surgical, force:true to include scratch \+                  documents that have since been saved. swx_close_all_documents is the bigger \+                  hammer, and it asks first.",+    }))+}++/// Should `swx_kill` refuse on unsaved-work grounds?+///+/// The subtlety, and the round-7 defect: when COM is wedged the probe FAILS, and+/// the old code turned that into `unsaved = 0` and skipped the guard — in+/// exactly the situation the verb exists for. An unanswerable question is not+/// permission, so unknown counts as unsafe.+pub(crate) fn kill_is_unsafe(unsaved_known: bool, unsaved: u64, force: bool) -> bool {+    if force {+        return false;+    }+    !unsaved_known || unsaved > 0+}++/// `swx_kill` — taskkill SOLIDWORKS. Gated twice, and it says why you almost+/// certainly should not.+pub fn kill(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    if let Some(g) = require_reason(args, "swx_kill", "force-killing a CAD application discards every unsaved document in it") {+        return g;+    }+    if let Some(g) = require_confirm(args, "swx_kill", "FORCE-KILL SOLIDWORKS and discard every unsaved document") {+        return g;+    }+    // THE CHOKE POINT. This verb ends the user's SOLIDWORKS session — the same+    // harm `swx_stop` does, more abruptly — but it goes out through ab rather+    // than the com host, so neither of the two vetoes was ever in its path. Its+    // own gates were `confirm` and `reason`, both of which a caller writes for+    // itself. `Kind::EndSession` is gated unconditionally, so the process-level+    // opt-in is required here exactly as it is for stop.+    let grant = match crate::writes::authorize_in(+        ctx,+        args,+        "swx_kill",+        crate::writes::Kind::EndSession,+        None,+        None,+    ) {+        Ok(g) => g,+        Err(e) => return e,+    };+    // If COM is wedged the probe fails — which is EXACTLY the case this verb+    // exists for, so "we could not count the unsaved documents" must mean+    // "assume there are some", not "assume zero". The old code let an+    // unanswerable question skip the guard entirely.+    let state = ctx.call("app_state", json!({}), 20);+    let unsaved_known = state.is_ok();+    let unsaved = state+        .ok()+        .and_then(|s| s.get("unsavedDocuments").and_then(|v| v.as_u64()))+        .unwrap_or(0);+    if kill_is_unsafe(unsaved_known, unsaved, arg_bool(args, "force", false)) {+        return err_code(+            "unsaved_documents",+            if unsaved_known {+                format!("SOLIDWORKS has {unsaved} document(s) with unsaved changes")+            } else {+                "SOLIDWORKS would not answer, so this bridge cannot tell what is unsaved"+                    .to_string()+            },+            "Killing now throws that work away. Save them (swx_save), close them, or pass \+             force:true if the user has explicitly said the changes are disposable. When the \+             application is too wedged to say what it has open — the very situation this verb \+             exists for — that counts as unsafe, not as safe: an unanswerable question is not \+             permission.",+        );+    }+    let reason = arg_str(args, "reason").unwrap_or("").to_string();+    let r = crate::caller::ad_callback(+        "shell_execute",+        json!({+            "command": "taskkill /F /IM SLDWORKS.exe",+            "timeoutSeconds": 60,+            "reason": format!("SOLIDWORKS bridge: {reason}"),+        }),+        Duration::from_secs(90),+    );+    crate::ledger::record(+        "solidworks_killed",+        json!({"reason": reason, "unsavedAtKill": unsaved, "unsavedKnown": unsaved_known, "authorized": grant.user_write}),+    );+    let killed = r.get("success").and_then(|v| v.as_bool()).unwrap_or(false)+        && r.get("exitCode").and_then(|v| v.as_i64()).unwrap_or(0) == 0;+    json!({+        "success": killed,+        "ab": r,+        "unsavedAtKill": if unsaved_known { json!(unsaved) } else { Value::Null },+        "unsavedKnown": unsaved_known,+        "_hint": "The desperate path, for a SOLIDWORKS that swx_stop cannot close (a wedged \+                  process, a modal nobody can answer). It ends the user's session, so it needs \+                  the same process-level opt-in as swx_stop, and it is delegated to ab's \+                  shell_execute so the kill appears in their Activity Log with your reason \+                  attached. swx_stop asks the application to quit properly and is what you want \+                  almost every time.",+        "_reportIssues": crate::verbs::report_issues(),+    })+}++#[cfg(test)]+mod kill_tests {+    use super::kill_is_unsafe;++    #[test]+    fn an_unanswerable_unsaved_probe_counts_as_unsafe() {+        // Known-clean is the only safe answer without `force`.+        assert!(!kill_is_unsafe(true, 0, false), "known clean => safe");+        assert!(kill_is_unsafe(true, 3, false), "known dirty => unsafe");+        // THE fix: a wedged SOLIDWORKS cannot say what it has open, and the old+        // code read that failure as zero and waved the kill through — precisely+        // when the verb is most likely to be used.+        assert!(kill_is_unsafe(false, 0, false), "unknown => unsafe, not zero");+        // `force` is the caller saying the work is disposable, which is theirs+        // to say — but it is on TOP of the process-level opt-in, not instead.+        assert!(!kill_is_unsafe(false, 0, true));+        assert!(!kill_is_unsafe(true, 9, true));+    }+}++// ── windows & dialogs (delegated to ab) ─────────────────────────────────────++/// `swx_window_info` — SOLIDWORKS' windows, as ab sees them.+pub fn window_info(ctx: &Ctx, _args: &Value) -> Value {+    gate!(ctx);+    let (hwnd, pid) = window_identity(ctx);+    match crate::abwin::list_windows(AB_TIMEOUT) {+        Err(e) => ok(json!({+            // NOT an empty array. "ab could not be asked" and "SOLIDWORKS has no+            // windows" are completely different facts, and an empty list reads+            // as the second — in the live run it did exactly that.+            "windows": Value::Null,+            "windowCount": Value::Null,+            "abAvailable": false,+            "mainHwnd": hwnd,+            "abError": e,+            "_hint": "THE WINDOW LIST IS UNKNOWN, not empty — ab could not be asked. Do not read \+                      this as \"SOLIDWORKS has no windows\". The usual cause is a bridge that was \+                      launched by hand rather than spawned by Adom Bridge, so it never inherited \+                      ADOM_DIRECT_API_URL; the other is a disconnected desktop relay. The COM \+                      side still answered: `mainHwnd` is SOLIDWORKS' own window handle, and every \+                      COM-backed verb works normally.",+        })),+        Ok(all) => {+            let ours = crate::abwin::solidworks_windows(&all, hwnd, pid);+            ok(json!({+                "mainHwnd": hwnd,+                "abAvailable": true,+                "windowCount": ours.len(),+                "windows": ours,+                "desktopWindowCount": all.len(),+                "windowEtiquette": "background",+                "_hint": "Read-only; nothing is raised, moved or focused. `ownerConfirmed:false` \+                          means the window is a plain Win32 dialog that COULD belong to another \+                          app — ab's flat window list carries no owner pid, so this bridge \+                          reports the doubt instead of hiding it. swx_screenshot on mainHwnd \+                          captures the app AND every dialog it really owns.",+            }))+        }+    }+}++/// `swx_dismiss_blocking_dialogs` — REPORT by default; closing is opt-in.+///+/// Learned live, the hard way, on 2026-09-02: closing a stuck SOLIDWORKS modal+/// through UIA took the whole application down with it. So the default here is+/// to describe what is on screen, and actually closing anything needs+/// `confirm:true` plus a `reason` — and a "Save changes?" dialog is refused+/// outright, because answering a question about the user's unsaved work is not+/// a decision a bridge gets to make.+pub fn dismiss_blocking_dialogs(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let close = arg_bool(args, "close", false);+    // The gates come FIRST, before any work: a caller who forgot the reason gets+    // the same answer whether or not ab happens to be reachable right now.+    if close {+        if let Some(g) = require_reason(args, "swx_dismiss_blocking_dialogs", "closing a dialog on someone else's live CAD session is a visible act") {+            return g;+        }+        if let Some(g) = require_confirm(args, "swx_dismiss_blocking_dialogs", "close SOLIDWORKS dialogs, which can take the application down with them") {+            return g;+        }+    }+    let (hwnd, pid) = window_identity(ctx);+    let all = match crate::abwin::list_windows(AB_TIMEOUT) {+        Err(e) => {+            return ok(json!({+                "dialogs": [],+                "abError": e,+                "_hint": "ab could not enumerate windows, so no dialog census is possible right \+                          now. swx_status still reports whether SOLIDWORKS is COM-attachable, \+                          which is the other half of 'is it wedged'.",+            }))+        }+        Ok(w) => w,+    };+    let dialogs = crate::abwin::dialog_census(&all, hwnd, pid);+    if !close {+        return ok(json!({+            "dialogs": dialogs,+            "dialogCount": dialogs.len(),+            "closed": [],+            "mainHwnd": hwnd,+            "_hint": "REPORT ONLY. Pass close:true (plus confirm:true and a reason) to close \+                      specific dialogs. Why the default is to look and not touch: on 2026-09-02 \+                      closing a stuck SOLIDWORKS modal through the window manager took the whole \+                      application down with it. A dialog flagged neverAutoAnswer:true \+                      (Save changes?, Document Recovery, licence) is NEVER closed by this verb \+                      at all — that question belongs to the user.",+        }));+    }+    let reason = arg_str(args, "reason").unwrap_or("dismissing a blocking dialog").to_string();+    let only: Vec<i64> = args+        .get("hwnds")+        .and_then(|v| v.as_array())+        .map(|a| a.iter().filter_map(|v| v.as_i64()).collect())+        .unwrap_or_default();+    let mut closed = Vec::new();+    let mut refused = Vec::new();+    for d in &dialogs {+        let h = d.get("hwnd").and_then(|v| v.as_i64()).unwrap_or(0);+        if h == 0 {+            continue;+        }+        if !only.is_empty() && !only.contains(&h) {+            continue;+        }+        if d.get("neverAutoAnswer").and_then(|v| v.as_bool()).unwrap_or(true) {+            refused.push(json!({"hwnd": h, "title": d.get("title"), "why": "this dialog asks about the user's own work"}));+            continue;+        }+        // A frame is never a dialog, whatever its title says. (`dialog_census`+        // only emits `#32770` windows, so this is belt-and-braces rather than+        // the load-bearing check — `is_frame_window` is that. It is kept+        // because the census shape is not this verb's to guarantee.)+        if d.get("isFrame") == Some(&Value::Bool(true)) || d.get("isDialog") == Some(&Value::Bool(false)) {+            refused.push(json!({"hwnd": h, "title": d.get("title"), "why": "this is an application window, not a dialog — swx_stop quits SOLIDWORKS"}));+            continue;+        }+        // EVERY close needs the process-level opt-in — not just the ones for+        // dialogs the bridge did not raise.+        //+        // The narrower rule (allow our own export sheets, gate the rest) was+        // tempting and wrong. In this container ab reports no pid so nothing was+        // attributable and this path never ran; on the real machine ab DOES+        // report pid, `ownerConfirmed` flips true, and dialogs become closable —+        // including ones the user is part-way through answering. And the+        // sharpest evidence is first-hand: on 2026-09-02 closing a stuck+        // SOLIDWORKS modal through the window manager TOOK THE WHOLE+        // APPLICATION DOWN. A verb that can do that should not act on+        // `confirm` + `reason`, both of which a caller writes for itself.+        //+        // `bridgeCaused` is still REPORTED, so a caller can see which dialogs+        // are the bridge's own mess — it just does not license closing them.+        let kind = d.get("kind").and_then(|k| k.as_str()).unwrap_or("unknown");+        if let Err(e) = crate::writes::authorize_in(+            ctx,+            args,+            &format!("swx_dismiss_blocking_dialogs (a '{kind}' dialog)"),+            crate::writes::Kind::EndSession,+            None,+            None,+        ) {+            refused.push(json!({+                "hwnd": h,+                "title": d.get("title"),+                "kind": kind,+                "bridgeCaused": crate::abwin::BRIDGE_CAUSED_DIALOGS.contains(&kind),+                "why": "closing a dialog can take SOLIDWORKS down with it (observed live), so it \+                        needs the process-level write opt-in",+                "refusal": e,+            }));+            continue;+        }+        // ATTRIBUTION. ab's window list carries no owner pid, so a bare Win32+        // dialog class is a CANDIDATE, not a SOLIDWORKS dialog — it is just as+        // likely to be a Save dialog belonging to Word. Closing one on a guess+        // is unacceptable, so an unattributed window is never closed.+        if !d.get("ownerConfirmed").and_then(|v| v.as_bool()).unwrap_or(false) {+            refused.push(json!({+                "hwnd": h,+                "title": d.get("title"),+                "why": "cannot prove this window belongs to SOLIDWORKS (ab's window list carries \+                        no owner pid); it may belong to another application",+            }));+            continue;+        }+        let r = crate::abwin::close_window(h, &reason, AB_TIMEOUT);+        let ok_flag = r.get("success").and_then(|v| v.as_bool()).unwrap_or(false);+        crate::ledger::record("dialog_closed", json!({"hwnd": h, "title": d.get("title"), "ok": ok_flag, "reason": reason}));+        closed.push(json!({"hwnd": h, "title": d.get("title"), "ok": ok_flag, "ab": r}));+    }+    ok(json!({+        "dialogs": dialogs,+        "closed": closed,+        "refused": refused,+        "_hint": "Only dialogs PROVABLY owned by SOLIDWORKS are closed (`ownerConfirmed:true`). \+                  ab's window list has no owner pid, so a bare Win32 dialog class is a candidate, \+                  not a fact — it could belong to any application, and this verb will not guess. \+                  To identify one for certain, swx_screenshot on `mainHwnd` captures SOLIDWORKS \+                  AND every popup it really owns. Every close is recorded in swx_action_ledger. \+                  If SOLIDWORKS stops responding afterwards, that is the known hazard: a modal \+                  the application was blocked on can take it down with it.",+    }))+}++/// `swx_close_window` — close ONE window by hwnd.+pub fn close_window(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let hwnd = match args.get("hwnd").and_then(|v| v.as_i64()) {+        Some(h) if h != 0 => h,+        _ => {+            return err(+                "hwnd is required",+                "swx_window_info and swx_dismiss_blocking_dialogs both report the hwnds.",+            )+        }+    };+    if let Some(g) = require_reason(args, "swx_close_window", "closing a window on the user's live desktop is a visible act") {+        return g;+    }+    if let Some(g) = require_confirm(args, "swx_close_window", "close a window on the user's desktop") {+        return g;+    }+    // This verb exists to close a SOLIDWORKS dialog. It is not a general+    // window killer, and it must not become one by accident: the hwnd has to be+    // one we can attribute to SOLIDWORKS.+    let (main, pid) = window_identity(ctx);+    let attributed = crate::abwin::list_windows(AB_TIMEOUT)+        .map(|all| crate::abwin::solidworks_windows(&all, main, pid))+        .unwrap_or_default()+        .into_iter()+        .find(|w| w.get("hwnd").and_then(|h| h.as_i64()) == Some(hwnd));+    // The COM-reported main window is refused WITHOUT consulting ab at all: if+    // ab is unreachable we would otherwise fall through to+    // `window_not_attributed`, which is the right answer for the wrong reason+    // and would flip to allowed the moment ab could see the window.+    if main.is_some() && main == Some(hwnd) {+        return json!({+            "success": false,+            "errorCode": "window_is_application_frame",+            "error": format!("hwnd {hwnd} is SOLIDWORKS' main application window, not a dialog"),+            "mainHwnd": main,+            "_hint": "This verb closes DIALOGS. Closing the application window quits SOLIDWORKS — \+                      raising a Save-changes modal for every unsaved document on the way out, \+                      and on a 3DEXPERIENCE/Connected edition this bridge cannot start it again. \+                      swx_stop asks it to quit properly and is gated for that reason.",+            "_reportIssues": crate::verbs::report_issues(),+        });+    }+    // A FRAME is not a dialog. Closing SOLIDWORKS' main window quits the+    // application — with Save-changes modals on the way out, and on a Connected+    // edition this bridge cannot start it again. It is also the MOST+    // attributable window there is, so the ownership check below passes on it;+    // that is precisely why this refusal has to come first.+    if attributed.as_ref().map(|w| w.get("isFrame") == Some(&Value::Bool(true))).unwrap_or(false) {+        return json!({+            "success": false,+            "errorCode": "window_is_application_frame",+            "error": format!("hwnd {hwnd} is a SOLIDWORKS application window, not a dialog"),+            "window": attributed,+            "mainHwnd": main,+            "_hint": "This verb closes DIALOGS. Closing an application frame quits SOLIDWORKS — \+                      raising a Save-changes modal for every unsaved document on the way out, \+                      and on a 3DEXPERIENCE/Connected edition this bridge cannot start it again. \+                      If the user genuinely wants SOLIDWORKS closed, swx_stop asks it to quit \+                      properly and is gated for that reason. swx_window_info marks every window \+                      with `isFrame` and `closable`.",+            "_reportIssues": crate::verbs::report_issues(),+        });+    }+    let confirmed = attributed+        .as_ref()+        .and_then(|w| w.get("ownerConfirmed").and_then(|v| v.as_bool()))+        .unwrap_or(false);+    if !confirmed {+        return json!({+            "success": false,+            "errorCode": "window_not_attributed",+            "error": format!("hwnd {hwnd} cannot be proved to belong to SOLIDWORKS"),+            "window": attributed,+            "mainHwnd": main,+            "_hint": "This verb closes SOLIDWORKS' own windows, and nothing else. ab's window \+                      list carries no owner pid, so a bare Win32 dialog class is not proof of \+                      ownership — closing it could hit another application's dialog. \+                      swx_window_info lists what IS attributable (`ownerConfirmed:true`), and \+                      swx_screenshot on `mainHwnd` captures SOLIDWORKS plus every popup it truly \+                      owns. For anything else, ab's own desktop verbs are the right tool and the \+                      user's approval prompt is the right gate.",+            "_reportIssues": crate::verbs::report_issues(),+        });+    }+    // A dialog that asks about the USER'S OWN WORK is never closed by this+    // bridge — "Save changes?", Document Recovery, licence. The sibling verb+    // (swx_dismiss_blocking_dialogs) has always refused these; this one had+    // neither that refusal nor the opt-in, and `swx_window_info` was+    // advertising the dialog as `closable:true`.+    let kind_of = attributed+        .as_ref()+        .and_then(|w| w.get("title").and_then(|t| t.as_str()))+        .map(crate::abwin::classify);+    if let Some((kind, _, never_auto)) = kind_of {+        if never_auto {+            return json!({+                "success": false,+                "errorCode": "dialog_belongs_to_the_user",+                "error": format!("hwnd {hwnd} is a '{kind}' dialog, which asks about the user's own work"),+                "window": attributed,+                "_hint": "This bridge does not answer questions about the user's unsaved work, \+                          their recovered documents, or their licence — closing such a dialog \+                          answers it, and by this bridge's own live evidence closing a modal \+                          SOLIDWORKS is blocked on can take the whole application down with \+                          every unsaved document in it. Ask the user to answer it.",+                "_reportIssues": crate::verbs::report_issues(),+            });+        }+    }+    // ...and closing ANY dialog needs the process-level opt-in, for the same+    // reason swx_dismiss_blocking_dialogs does. `confirm` and `reason` are both+    // things a caller writes for itself, which is not a sufficient basis for an+    // act that can end the user's session.+    if let Err(e) = crate::writes::authorize_in(+        ctx,+        args,+        "swx_close_window",+        crate::writes::Kind::EndSession,+        None,+        None,+    ) {+        return e;+    }+    let reason = arg_str(args, "reason").unwrap_or("").to_string();+    let r = crate::abwin::close_window(hwnd, &reason, AB_TIMEOUT);+    crate::ledger::record("window_closed", json!({"hwnd": hwnd, "reason": reason}));+    let ok_flag = r.get("success").and_then(|v| v.as_bool()).unwrap_or(false);+    json!({+        "success": ok_flag,+        "hwnd": hwnd,+        "ab": r,+        "windowEtiquette": "background",+        "_hint": "Delegates to ab's desktop_ui_window (UIA WindowPattern.close) — background, \+                  no focus steal. Closing a modal that SOLIDWORKS is BLOCKED on has been \+                  observed to end the application; check swx_status afterwards.",+        "_reportIssues": crate::verbs::report_issues(),+    })+}++/// `swx_set_driving_badge` — the "Adom is driving SOLIDWORKS" taskbar overlay.+pub fn set_driving_badge(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let stored = crate::scratch::setting_bool("drivingBadge").unwrap_or(true);+    let Some(enabled) = args.get("enabled").and_then(|v| v.as_bool()) else {+        return ok(json!({+            "showDrivingBadge": stored,+            "_hint": "Read-only with no `enabled`. Pass enabled:true/false to change it; the \+                      setting is sticky and lives with the bridge, not with this conversation.",+        }));+    };+    crate::scratch::set_setting_bool("drivingBadge", enabled);+    let hwnd = main_hwnd(ctx);+    let ab = match hwnd {+        Some(h) => crate::abwin::set_badge(h, enabled, "Adom is driving SOLIDWORKS", AB_TIMEOUT),+        None => json!({"success": false, "error": "SOLIDWORKS window handle unavailable (is it running?)"}),+    };+    ok(json!({+        "showDrivingBadge": enabled,+        "applied": ab.get("success").and_then(|v| v.as_bool()).unwrap_or(false),+        "mainHwnd": hwnd,+        "ab": ab,+        "_hint": "A taskbar overlay so the user can see, at a glance, that an AI is driving \+                  their CAD session. Sticky. It is applied to SOLIDWORKS' own window via ab's \+                  desktop_taskbar; with SOLIDWORKS closed the preference is stored and applied \+                  the next time a verb finds a window.",+    }))+}++/// `swx_check_recovery` — is SOLIDWORKS showing the Document Recovery pane?+pub fn check_recovery(ctx: &Ctx, _args: &Value) -> Value {+    gate!(ctx);+    let com = ctx.call("check_recovery", json!({}), 30).unwrap_or_else(|e| json!({"error": e.message}));+    let (hwnd, pid) = window_identity(ctx);+    let dialogs = crate::abwin::list_windows(AB_TIMEOUT)+        .map(|all| crate::abwin::dialog_census(&all, hwnd, pid))+        .unwrap_or_default();+    let recovery: Vec<Value> = dialogs+        .iter()+        .filter(|d| d.get("kind").and_then(|k| k.as_str()) == Some("document_recovery"))+        .cloned()+        .collect();+    ok(json!({+        "recoveryDialogs": recovery.clone(),+        "recoveryPending": !recovery.is_empty(),+        "dialogs": dialogs,+        "com": com,+        "_hint": "SOLIDWORKS has no COM member that answers 'is the recovery pane up', so this \+                  is a WINDOW-level answer: a Document Recovery dialog on screen means the last \+                  session ended badly and the user has a decision to make. This bridge will not \+                  answer it for them.",+    }))+}++/// `swx_action_ledger` — what the bridge did in the background.+pub fn action_ledger(_ctx: &Ctx, args: &Value) -> Value {+    let limit = args.get("limit").and_then(|v| v.as_u64()).unwrap_or(50).clamp(1, 500) as usize;+    let actions = crate::ledger::read(limit);+    ok(json!({+        "actions": actions.clone(),+        "count": actions.len(),+        "limit": limit,+        "_hint": "The append-only record of everything this bridge did on its own initiative: \+                  documents it created and closed, dialogs it closed, SOLIDWORKS kills. \+                  Chronological, oldest first. Works with SOLIDWORKS closed — it is a file in \+                  the bridge's own scratch dir, and swx_uninstall removes it.",+    }))+}++/// `swx_verb_times` — measured timings on THIS machine.+pub fn verb_times(_ctx: &Ctx, _args: &Value) -> Value {+    let stages = crate::ledger::stages();+    let count = stages.as_object().map(|m| m.len()).unwrap_or(0);+    ok(json!({+        "stages": stages,+        "verbCount": count,+        "_hint": "count/p50/p90/min/max seconds per verb, measured HERE — the honest input for \+                  an ETA or a progress bar, instead of a constant compiled into the bridge. \+                  Percentiles are nearest-rank, so every number shown is a run that really \+                  happened. Empty until slow verbs have run at least once.",+    }))+}++// ── documents: create, import, save-as, show ────────────────────────────────++/// `swx_new_document` — the verb Drew asked for. LIVE-PROVEN.+pub fn new_document(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let kind = arg_str(args, "type").unwrap_or("part").to_string();+    let job = ctx.jobs.start("new_document", format!("Creating a new {kind}"), 15);+    let call_args = json!({"type": kind, "template": args.get("template").cloned()});+    let started = std::time::Instant::now();+    match ctx.call("new_document", call_args, 110) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record_time("swx_new_document", started.elapsed().as_secs_f64());+            if let Some(t) = r.get("created").and_then(|c| c.get("title")).and_then(|t| t.as_str()) {+                ctx.remember_scratch(t, ownership_context(ctx).0);+            }+            crate::ledger::record(+                "document_created",+                json!({+                    "title": r.get("created").and_then(|c| c.get("title")).cloned(),+                    "type": kind,+                    "template": r.get("template").cloned(),+                }),+            );+            ok_merge(r, json!({+                "windowEtiquette": "background",+                "progress": job.finished(),+                "_hint": "A NEW, UNSAVED document is now open and active — it has a title \+                          (Part1) and no path until you swx_save_as it. Build geometry with \+                          swx_run_script, then swx_save_as to put it on disk; swx_close_doc \+                          {save:false} throws it away. The bridge remembers it created this one \+                          (swx_action_ledger), which is what lets swx_reset_workspace clean up \+                          after itself without touching the user's own documents.",+            }))+        }+    }+}++/// `swx_import` — a neutral CAD file in as a new document (fusion_import_step).+pub fn import(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let path = match arg_str(args, "filePath").or_else(|| arg_str(args, "path")) {+        Some(p) => p.to_string(),+        None => {+            return err(+                "filePath is required",+                "An absolute path on the DESKTOP filesystem to a STEP/IGES/Parasolid/STL file. \+                 From a container, push the bytes over with ab's write_file first. For a native \+                 .sldprt/.sldasm/.slddrw use swx_open instead — that is not an import.",+            )+        }+    };+    let job = ctx.jobs.start("import", format!("Importing {}", crate::comhost::mock::base_name(&path)), 60);+    let started = std::time::Instant::now();+    match ctx.call("import", json!({"filePath": path}), 280) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record_time("swx_import", started.elapsed().as_secs_f64());+            if let Some(t) = r.get("imported").and_then(|c| c.get("title")).and_then(|t| t.as_str()) {+                ctx.remember_scratch(t, ownership_context(ctx).0);+            }+            crate::ledger::record(+                "document_created",+                json!({"title": r.get("imported").and_then(|c| c.get("title")).cloned(), "via": "import"}),+            );+            ok_merge(r, json!({+                "windowEtiquette": "background",+                "progress": job.finished(),+                "_hint": "Imported as a NEW unsaved document. Which formats work depends on the \+                          translators the install has — an unsupported one comes back as a \+                          clear refusal, not a dialog. swx_inspect_bodies tells you what \+                          actually arrived.",+            }))+        }+    }+}++/// `swx_save_as` — write the active document somewhere new.+pub fn save_as(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let out = match arg_str(args, "outputPath").or_else(|| arg_str(args, "out")) {+        Some(o) => match safe_out(o) {+            Ok(p) => p,+            Err(e) => return e,+        },+        None => {+            return err(+                "outputPath is required",+                "An absolute destination path, e.g. C:\\\\parts\\\\bracket.sldprt. This is how a \+                 document made by swx_new_document gets onto disk.",+            )+        }+    };+    if let Some(ext) = blocked_by_extension(&out) {+        return blocked_path_error(&out, ext);+    }+    let copy = arg_bool(args, "copy", false);+    // A plain (non-copy) save-as RETITLES the open document — that is the point+    // of it, and exactly how v0.2 silently renamed people's parts. Resolve the+    // target ONCE and send that identity down, so the document the gate+    // approved is the document the com host acts on.+    // Ownership and overwrite are BOTH decided by the choke point below; here+    // we only need the document's identity, resolved unambiguously.+    let resolved = resolve_document(ctx, args, "swx_save_as");+    let target = match resolved {+        Ok(t) => t,+        Err(e) => return e,+    };+    let grant = match crate::writes::authorize_in(+        ctx,+        args,+        "swx_save_as",+        if copy { crate::writes::Kind::ExportCopy } else { crate::writes::Kind::Rename },+        Some(&target),+        Some(&out),+    ) {+        Ok(g) => g,+        Err(e) => return e,+    };+    let mut call_args = crate::writes::with_grant(target.args(), &grant);+    if let Value::Object(m) = &mut call_args {+        m.insert("outputPath".into(), Value::from(out.clone()));+        m.insert("copy".into(), Value::from(copy));+    }+    let started = std::time::Instant::now();+    let was = target.title.clone();+    match ctx.call("save_as", call_args, 280) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record_time("swx_save_as", started.elapsed().as_secs_f64());+            crate::ledger::record("document_saved_as", json!({"document": was, "outputPath": r.get("savedAs"), "copy": copy}));+            // A rename keeps our claim on the document — under its new title AND+            // its new path. Record the path SOLIDWORKS REPORTS, not the one we+            // asked for: it normalises the case (`smoke.sldprt` comes back as+            // `smoke.SLDPRT`), and keeping the requested string is what made the+            // bridge disown its own scratch document the moment it saved it.+            if !copy && target.owned {+                if let Some(now) = r.get("doc").and_then(|d| d.get("title")).and_then(|t| t.as_str()) {+                    let reported = r+                        .get("doc")+                        .and_then(|d| d.get("path"))+                        .and_then(|p| p.as_str())+                        .filter(|s| !s.is_empty())+                        .map(String::from)+                        .unwrap_or_else(|| out.clone());+                    ctx.rename_scratch(&was, now, Some(reported));+                }+            }+            ok_merge(r, json!({+                "_hint": "Default (copy:false) is a real Save As: the OPEN document is now this \+                          file and carries this name. copy:true writes the file and leaves the \+                          open document exactly as it was — that is what swx_export does for \+                          every neutral format.",+            }))+        }+    }+}++/// The `swx_show_*` family — bring a document to the front of SOLIDWORKS' own+/// window and fit it in view, without touching the user's desktop focus.+pub fn show(ctx: &Ctx, args: &Value, want: &'static str) -> Value {+    gate!(ctx);+    // Opening first is what makes `swx_show_part {path}` a one-call verb.+    if let Some(path) = arg_str(args, "path") {+        if let Some(t) = crate::comhost::mock::doc_type_of(path) {+            if t != want {+                return err_code(+                    "wrong_document_type",+                    format!("swx_show_{want} was given a {t}: {path}"),+                    format!("Use swx_show_{t} for that file, or swx_open plus swx_state."),+                );+            }+        }+        let already = ctx+            .call("docs", json!({}), 30)+            .ok()+            .and_then(|r| r.get("docs").and_then(|d| d.as_array()).cloned())+            .map(|docs| {+                docs.iter().any(|d| d.get("path").and_then(|p| p.as_str()) == Some(path))+            })+            .unwrap_or(false);+        if !already {+            if let Err(e) = ctx.call("open", json!({"path": path}), 280) {+                return sidecar_error(e);+            }+        }+    }+    let call_args = json!({"path": args.get("path").cloned(), "activate": arg_bool(args, "activate", true)});+    match ctx.call("show", call_args, 110) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            let doc_type = r.get("doc").and_then(|d| d.get("type")).and_then(|t| t.as_str()).unwrap_or("");+            if !doc_type.is_empty() && doc_type != want {+                return err_code(+                    "wrong_document_type",+                    format!("the active document is a {doc_type}, not a {want}"),+                    format!("swx_show_{doc_type} is the verb for it, or pass `path`."),+                );+            }+            let shot = if arg_bool(args, "capture", false) {+                main_hwnd(ctx).map(|h| crate::abwin::screenshot(h, Duration::from_secs(45)))+            } else {+                None+            };+            ok_merge(r, json!({+                "view": want,+                "screenshot": shot,+                "windowEtiquette": "background",+                "_hint": "Activated inside SOLIDWORKS and zoomed to fit — SOLIDWORKS' own window \+                          is never raised over whatever the user is doing. capture:true adds a \+                          background PrintWindow screenshot (via ab), which works even when the \+                          window is behind everything else.",+            }))+        }+    }+}++// ── design intelligence ─────────────────────────────────────────────────────++pub fn design_info(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let target = match resolve_document(ctx, args, "swx_design_info") {+        Ok(t) => t,+        Err(e) => return e,+    };+    match ctx.call("design_info", target.args(), 110) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(r, json!({+            "_hint": "The design-health first look: features/sketches/bodies/components, the \+                      material, and whether anything is broken. featureErrors > 0 means numbers \+                      from swx_mass_properties or swx_bom are suspect — run swx_rebuild_check \+                      for the names.",+        })),+    }+}++pub fn get_parameters(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let target = match resolve_document(ctx, args, "swx_get_parameters") {+        Ok(t) => t,+        Err(e) => return e,+    };+    match ctx.call("get_parameters", target.args(), 110) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(r, json!({+            "_hint": "Two sources in one list. `source:\"equation\"` rows are global variables \+                      from the equation manager (name + expression). `source:\"dimension\"` rows \+                      are named model dimensions — those are what swx_set_parameter drives, and \+                      their names look like D1@Boss-Extrude1. `value` is SI metres; `valueMm` is \+                      the same number in the unit an engineer says out loud.",+        })),+    }+}++pub fn set_parameter(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    if arg_str(args, "name").is_none() {+        return err(+            "name is required",+            "A dimension name as swx_get_parameters reports it, e.g. \"D1@Boss-Extrude1\".",+        );+    }+    if args.get("value").is_none() && args.get("valueMm").is_none() {+        return err(+            "value or valueMm is required",+            "valueMm is millimetres (what you probably mean); value is SI metres, matching what \+             swx_get_parameters returns. Passing both uses valueMm.",+        );+    }+    // Driving a dimension REBUILDS the model. Same rule as swx_run_script: not+    // on a document the bridge did not create, unless the caller says so — and+    // the resolved identity travels with the request.+    let target = match resolve_document(ctx, args, "swx_set_parameter") {+        Ok(t) => t,+        Err(e) => return e,+    };+    let grant = match crate::writes::authorize_in(ctx, args, "swx_set_parameter", crate::writes::Kind::ModifyDocument, Some(&target), None) {+        Ok(g) => g,+        Err(e) => return e,+    };+    let mut call_args = crate::writes::with_grant(target.args(), &grant);+    if let Value::Object(m) = &mut call_args {+        m.insert("name".into(), args.get("name").cloned().unwrap_or(Value::Null));+        m.insert("value".into(), args.get("value").cloned().unwrap_or(Value::Null));+        m.insert("valueMm".into(), args.get("valueMm").cloned().unwrap_or(Value::Null));+    }+    match ctx.call("set_parameter", call_args, 280) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record("parameter_set", json!({"name": r.get("name"), "value": r.get("value")}));+            ok_merge(r, json!({+                "_hint": "Changed IN MEMORY and rebuilt. `before` and `value` let you verify the \+                          model actually moved; swx_save persists it, and without that the next \+                          close discards the change. A rebuild error afterwards shows up in \+                          swx_rebuild_check.",+            }))+        }+    }+}++/// `swx_add_component` — insert component instances into an assembly.+///+/// The verb the assembly surface was missing. Everything downstream of it —+/// `swx_bom`, `swx_interference`, per-component mass properties — needed an+/// assembly with components in it, and until this existed there was no way to+/// make one from a container.+///+/// Positions are MILLIMETRES, absolute in the assembly's coordinate system, and+/// the whole batch goes in ONE call: a crate of 150 fasteners is 150 COM+/// insertions but one round trip.+pub fn add_component(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    // Parse BEFORE resolving or authorizing: a malformed request must not open+    // with a COM round trip, and the caller gets the grammar back.+    let comps = match crate::script::parse_components(args) {+        Ok(c) => c,+        Err(e) => {+            return err(+                e,+                "swx_add_component {\"targetDocument\":\"Assem1\",\"components\":[{\"filePath\":\+                 \"C:\\\\parts\\\\rail.sldprt\",\"xMm\":0,\"yMm\":0,\"zMm\":0}]} — filePath is an \+                 absolute path on the DESKTOP filesystem, positions are millimetres in the \+                 assembly's coordinate system, and `configuration` picks a non-default \+                 configuration of the component.",+            )+        }+    };+    // Inserting a component MODIFIES the assembly, so it faces the same rule as+    // every other geometry change: not on a document the bridge did not create.+    // The component FILES are only read — the same reason an export from the+    // user's part is free — so they are not part of the gate.+    let target = match resolve_document(ctx, args, "swx_add_component") {+        Ok(t) => t,+        Err(e) => return e,+    };+    let grant = match crate::writes::authorize_in(+        ctx,+        args,+        "swx_add_component",+        crate::writes::Kind::ModifyDocument,+        Some(&target),+        None,+    ) {+        Ok(g) => g,+        Err(e) => return e,+    };+    let mut call_args = crate::writes::with_grant(target.args(), &grant);+    if let Value::Object(m) = &mut call_args {+        m.insert("components".into(), args.get("components").cloned().unwrap_or(Value::Null));+        // The single-component shorthand travels as the keys themselves.+        for k in [+            "filePath",+            "file",+            "xMm",+            "yMm",+            "zMm",+            "rotXDeg",+            "rotYDeg",+            "rotZDeg",+            "configuration",+            "fix",+        ] {+            if let Some(v) = args.get(k) {+                m.insert(k.into(), v.clone());+            }+        }+    }+    let job = ctx.jobs.start(+        "add_component",+        format!("Inserting {} component(s)", comps.len()),+        10 + comps.len() as u64,+    );+    let started = std::time::Instant::now();+    // 8s per component is generous for a warm install and survives a cold one+    // loading each part document for the first time.+    let timeout = (60 + 8 * comps.len() as u64).min(900);+    match ctx.call("add_component", call_args, timeout) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record_time("swx_add_component", started.elapsed().as_secs_f64());+            crate::ledger::record(+                "components_added",+                json!({+                    "assembly": target.title,+                    "insertedCount": r.get("insertedCount"),+                    "failedCount": r.get("failedCount"),+                    "method": r.get("method"),+                }),+            );+            let failed = r.get("failedCount").and_then(|v| v.as_i64()).unwrap_or(0);+            ok_merge(r, json!({+                "windowEtiquette": "background",+                "progress": job.finished(),+                "_hint": if failed > 0 {+                    "Some components did not go in — `failed[]` carries every insert call that \+                     was tried and what COM said. Success is measured by the assembly's \+                     component COUNT rising, not by the insert call's return value: \+                     AddComponent5 hands back Nothing on SOLIDWORKS Connected even when it \+                     worked, which is why this verb counts instead of trusting it. Changed IN \+                     MEMORY: swx_save persists the assembly."+                } else {+                    "Inserted, IN MEMORY — swx_save persists the assembly. `placedCount` is how \+                     many got the exact transform asked for: AddComponent5's X/Y/Z is NOT the \+                     component's origin, so the bridge writes each component's transform itself \+                     and `xMm/yMm/zMm` mean 'put the component's ORIGIN here'. Verify with \+                     swx_bom (what is in it, with quantities and custom-property columns) and \+                     swx_interference (count:0 is clean). `method` names the COM call that \+                     worked on this install; the bridge remembers it, so the next batch pays \+                     one call per component."+                },+            }))+        }+    }+}++pub fn inspect_bodies(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let target = match resolve_document(ctx, args, "swx_inspect_bodies") {+        Ok(t) => t,+        Err(e) => return e,+    };+    let mut call_args = target.args();+    if let Value::Object(m) = &mut call_args {+        m.insert("nameContains".into(), args.get("nameContains").cloned().unwrap_or(Value::Null));+    }+    match ctx.call("inspect_bodies", call_args, 130) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(r, json!({+            "_hint": "GEOMETRY READ-BACK in MILLIMETRES — what actually got built, per solid \+                      body: bounding box, size, volume, area, mass, face count. This is the verb \+                      that tells you a modeling script did what you meant. Parts only; for an \+                      assembly use swx_bom (what is in it) or swx_mass_properties (what it \+                      weighs).",+        })),+    }+}++pub fn run_script(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let script = match args.get("script") {+        Some(s) if !s.is_null() => s.clone(),+        _ => return script_help("script is required"),+    };+    // Parse + validate HERE, before anything touches the live session: a script+    // that cannot work must never half-run on someone's CAD application.+    let ops = match crate::script::parse(&script) {+        Ok(o) => o,+        Err(e) => return script_help(e),+    };+    let makes_its_own_doc =+        matches!(ops.first(), Some(crate::script::Op::NewPart | crate::script::Op::NewAssembly));+    let has_doc = ctx+        .call("docs", json!({}), 30)+        .ok()+        .and_then(|r| r.get("docs").and_then(|d| d.as_array()).map(|a| !a.is_empty()))+        .unwrap_or(false);+    if let Err(e) = crate::script::validate(&ops, has_doc) {+        return script_help(e);+    }+    // OWNERSHIP. A script that does not start by creating its own document+    // builds geometry into whatever is already open — which, unless the bridge+    // made it, is the user's model. Sketches and extrusions are not something+    // to add to somebody's part on the strength of an unqualified verb call,+    // and there is no undo: `swx_close_doc {save:false}` would throw away THEIR+    // document, not just our changes.+    let mut pinned: Option<String> = None;+    let mut grant = crate::writes::Grant { host_args: json!({}), user_write: false };+    if !makes_its_own_doc {+        let target = match resolve_document(ctx, args, "swx_run_script") {+            Ok(t) => t,+            Err(e) => return e,+        };+        grant = match crate::writes::authorize_in(ctx, args, "swx_run_script", crate::writes::Kind::ModifyDocument, Some(&target), None) {+            Ok(g) => g,+            Err(e) => return e,+        };+        pinned = Some(target.title);+    }+    // A `save_as` STEP writes a file; its destination faces the same rule.+    for op in &ops {+        if let crate::script::Op::SaveAs { path } = op {+            if let Err(e) = crate::writes::authorize_in(ctx, args, "swx_run_script (save_as step)", crate::writes::Kind::ExportCopy, None, Some(path)) {+                return e;+            }+        }+    }+    let job = ctx.jobs.start("run_script", format!("Running {} modeling step(s)", ops.len()), 30);+    let started = std::time::Instant::now();+    // The pinned title travels with the request so the com host targets the SAME+    // document for every step, instead of re-resolving "whatever is active now"+    // — a dialog, or the user clicking another window, must not be able to move+    // a running script onto a different model halfway through.+    let call_args = crate::writes::with_grant(json!({"script": script, "targetDocument": pinned}), &grant);+    match ctx.call("run_script", call_args, 280) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record_time("swx_run_script", started.elapsed().as_secs_f64());+            if let Some(t) = r+                .get("created")+                .and_then(|c| c.get("created").and_then(|x| x.get("title")).or_else(|| c.get("title")))+                .and_then(|t| t.as_str())+            {+                ctx.remember_scratch(t, ownership_context(ctx).0);+            }+            if let Some(created) = r.get("created").filter(|c| !c.is_null()) {+                crate::ledger::record(+                    "document_created",+                    json!({"title": created.get("created").and_then(|c| c.get("title")).or_else(|| created.get("title")), "via": "run_script"}),+                );+            }+            let ours = r+                .get("documentName")+                .and_then(|t| t.as_str())+                .map(|t| ctx.scratch_titles().iter().any(|s| s == t))+                .unwrap_or(false);+            ok_merge(r, json!({+                "progress": job.finished(),+                "ops": crate::script::OPS,+                "bridgeCreatedDocument": ours,+                "_hint": if ours {+                    "Each step reports what it built. Verify with swx_inspect_bodies (the \+                     geometry) or swx_mass_properties (the mass) rather than trusting the step \+                     list. This document was created by the bridge, so swx_close_doc \+                     {save:false} discards the whole thing safely; swx_save_as puts it on disk. \+                     A step that fails stops the script and says which one, leaving what was \+                     already built in place."+                } else {+                    "Each step reports what it built. Verify with swx_inspect_bodies rather than \+                     trusting the step list. WARNING: this ran against a document the bridge did \+                     NOT create, so there is no safe undo — do NOT reach for swx_close_doc \+                     {save:false}, which would discard the user's whole document and not just \+                     these features. Undo belongs to the user, in SOLIDWORKS."+                },+            }))+        }+    }+}++/// One place for the DSL's documentation, so a rejected script teaches the+/// caller the grammar instead of just saying no.+fn script_help(message: impl Into<String>) -> Value {+    let mut v = err_code(+        "bad_script",+        message,+        "swx_run_script takes `script`: a JSON ARRAY of steps, not a string of code. SOLIDWORKS \+         has no in-process scripting host the way Fusion has Python, so this bridge exposes a \+         small typed DSL over the modeling calls proven to work on a live install. Every \+         dimension is in MILLIMETRES.",+    );+    if let Value::Object(map) = &mut v {+        map.insert("ops".into(), json!(crate::script::OPS));+        map.insert(+            "example".into(),+            json!({+                "script": [+                    {"op": "new_part"},+                    {"op": "sketch_rect", "plane": "Front Plane", "widthMm": 50, "heightMm": 30},+                    {"op": "extrude", "depthMm": 20},+                    {"op": "set_material", "name": "6061 Alloy"},+                    {"op": "set_prop", "name": "PartNo", "value": "BRK-100"},+                    {"op": "save_as", "path": "C:\\parts\\bracket.sldprt"}+                ]+            }),+        );+        map.insert(+            "opArgs".into(),+            json!({+                "new_part": {},+                "new_assembly": {},+                "sketch_rect": {"plane": "Front Plane|Top Plane|Right Plane", "widthMm": "required", "heightMm": "required", "xMm": 0, "yMm": 0},+                "sketch_circle": {"plane": "Front Plane", "radiusMm": "required", "xMm": 0, "yMm": 0},+                "extrude": {"depthMm": "required", "reverse": false},+                "cut": {"depthMm": 0, "throughAll": false},+                "set_material": {"name": "required", "database": "SOLIDWORKS Materials.sldmat"},+                "set_prop": {"name": "required", "value": "required"},+                "save_as": {"path": "required, absolute"},+                "rebuild": {},+                "zoom_fit": {},+            }),+        );+    }+    v+}++// ── preferences ─────────────────────────────────────────────────────────────++pub fn get_preferences(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let target = resolve_document(ctx, args, "swx_get_preferences").ok();+    let call_args = target.as_ref().map(|t| t.args()).unwrap_or_else(|| json!({}));+    match ctx.call("get_preferences", call_args, 60) {+        Err(e) => sidecar_error(e),+        Ok(r) => ok_merge(r, json!({+            "_hint": "A DELIBERATELY SMALL set: only preferences swx_set_preference can write \+                      and read back, because a preference the bridge cannot verify is one it has \+                      no business claiming to support. Fusion's theme/navigation preferences have \+                      no SOLIDWORKS equivalent this bridge can drive — see the parity report. \+                      Note that geometry is always reported in SI or millimetres regardless of \+                      the document's display units.",+        })),+    }+}++pub fn set_preference(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    if arg_str(args, "name").is_none() || args.get("value").is_none() {+        return err(+            "name and value are required",+            "swx_get_preferences lists the names this bridge can write; `value` is the integer \+             enum value.",+        );+    }+    // H1 (round 5): this verb resolved NOTHING. With no `path` the com host fell+    // through to ActiveDoc and called SetUserPreferenceInteger on the user's+    // document, marking it dirty — a change to their model, entirely outside+    // the gate, which a later save would persist.+    let target = match resolve_document(ctx, args, "swx_set_preference") {+        Ok(t) => t,+        Err(e) => return e,+    };+    let grant = match crate::writes::authorize_in(ctx, args, "swx_set_preference", crate::writes::Kind::Preference, Some(&target), None) {+        Ok(g) => g,+        Err(e) => return e,+    };+    let mut call_args = crate::writes::with_grant(target.args(), &grant);+    if let Value::Object(m) = &mut call_args {+        m.insert("name".into(), args.get("name").cloned().unwrap_or(Value::Null));+        m.insert("value".into(), args.get("value").cloned().unwrap_or(Value::Null));+    }+    match ctx.call("set_preference", call_args, 60) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record("preference_set", json!({"name": r.get("name"), "value": r.get("value")}));+            ok_merge(r, json!({+                "_hint": "`verified` is the one field that matters: the bridge READS THE VALUE \+                          BACK after writing it, so verified:false means SOLIDWORKS silently \+                          refused. Document-scoped — it applies to the target document, not the \+                          application.",+            }))+        }+    }+}++// ── cloud ───────────────────────────────────────────────────────────────────++/// `swx_cloud_status` — the honest answer about 3DEXPERIENCE.+pub fn cloud_status(ctx: &Ctx, _args: &Value) -> Value {+    gate!(ctx);+    let detection = ctx.detection();+    let com = ctx.call("cloud_status", json!({}), 60).unwrap_or_else(|e| json!({"error": e.message}));+    ok_merge(com, json!({+        "edition": detection.edition(),+        "errorCode": "cloud_not_available",+        "supported": false,+        "solidworks": detection.to_json(),+        "_hint": "There is NO cloud file access in this bridge, and the reason is not laziness: \+                  the SOLIDWORKS COM API exposes no 3DSpace/3DDrive member at all (IsPLMConnected, \+                  GetPLMConnection, GetSearchFolders and EnumDocuments2 are absent or rejected on \+                  a live 3DEXPERIENCE R2026x install — `probedMembers` is that probe, run just \+                  now). Fusion's cloud verbs work because Autodesk publishes a REST API (APS) the \+                  bridge can authenticate against on its own; the 3DEXPERIENCE equivalent is \+                  3DSpace REST behind a tenant-specific CAS/passport login, which would be a \+                  separate OAuth story and is not built. Local files work fully: swx_find_files, \+                  swx_open, swx_save_as, swx_export.",+    }))+}++// ── per-format export aliases ───────────────────────────────────────────────++/// Formats verified to WRITE REAL BYTES from a part on a live SOLIDWORKS+/// Design Professional for Makers 2026 (3DEXPERIENCE R2026x), 2026-09-02.+pub const PROVEN_MODEL_FORMATS: &[&str] = &[+    "step", "stp", "iges", "igs", "stl", "parasolid", "x_t", "x_b", "sat", "3mf", "glb", "ply",+    "amf", "3dxml", "png", "jpg", "tif", "xaml", "pdf",+];++/// Formats SOLIDWORKS REFUSED for a part (swFileSaveError_e 256) on that same+/// install: DXF/DWG are drawing formats, OBJ and U3D are simply not available.+pub const REFUSED_FOR_PARTS: &[&str] = &["obj", "dxf", "dwg", "u3d"];++/// `.wrl` (VRML) raised a modal option sheet and HUNG the COM call until the+/// watchdog killed the child — so the bridge refuses it rather than wedging+/// someone's SOLIDWORKS for two minutes.+pub const BLOCKED_FORMATS: &[&str] = &["wrl", "vrml"];++/// Is this DESTINATION PATH one SOLIDWORKS must never be asked to write?+///+/// This is the check that matters, and the first version of it was wrong in a+/// way worth recording: v0.3's guard tested the `format` ARGUMENT, but+/// `SaveAs3` keys the format off the destination EXTENSION. So+/// `swx_export_step {outputPath:"x.wrl"}` sailed straight past a guard whose+/// entire purpose was to stop that call — and the per-format aliases hard-code+/// `format`, so for them the guard could never fire at all. The extension is+/// the only thing SOLIDWORKS actually looks at, so it is the only thing worth+/// checking. Enforced at the server AND again in the com host's `save_as3`,+/// because the modelling DSL reaches that function by a different road.+pub fn blocked_by_extension(path: &str) -> Option<&'static str> {+    normalized_extension(path).and_then(|ext| BLOCKED_FORMATS.iter().copied().find(|b| **b == *ext))+}++/// The extension Windows will ACTUALLY use, which is not what `Path::extension`+/// returns for a hostile string. Win32 canonicalisation strips trailing dots+/// and spaces, and an NTFS alternate-data-stream suffix is not part of the+/// name — so `a.wrl.`, `a.wrl ` and `a.wrl::$DATA` all land on `a.wrl`, and a+/// raw comparison waved all three through the guard on the format that hangs+/// SOLIDWORKS.+pub fn normalized_extension(path: &str) -> Option<String> {+    let last = path.rsplit(['/', '\\']).next().unwrap_or(path);+    // An ADS suffix (`name:stream`) is not part of the filename Windows opens.+    let last = last.split(':').next().unwrap_or(last);+    // Trailing dots and spaces are stripped by the OS, not honoured.+    let trimmed = last.trim_end_matches([' ', '.', '\t']);+    let dot = trimmed.rfind('.')?;+    if dot == 0 || dot + 1 >= trimmed.len() {+        return None;+    }+    Some(trimmed[dot + 1..].to_ascii_lowercase())+}++/// The refusal, shared by every path that can name a destination file.+pub fn blocked_path_error(path: &str, ext: &str) -> Value {+    err_code(+        "format_blocked",+        format!("{path} would write a .{ext} file, which this bridge refuses"),+        "VRML export raises a modal option sheet that no unattended caller can answer: on a live          install it hung the COM call until the watchdog killed the host, and left the dialog on          the user's screen. SOLIDWORKS picks the export format from the destination EXTENSION,          not from the `format` argument — so this is checked on the filename. Write STEP, 3MF or          GLB instead.",+    )+}++/// One export alias (`swx_export_step` and friends) — the same handler as+/// `swx_export`, with the format fixed, so the arg surface matches Fusion's+/// per-format verbs.+pub fn export_as(ctx: &Ctx, args: &Value, format: &'static str) -> Value {+    let mut a = args.clone();+    if let Value::Object(map) = &mut a {+        map.insert("format".into(), Value::from(format));+        // Fusion spells it outputPath; v0.2 spelled it out. Accept both.+        if let Some(p) = map.get("outputPath").cloned() {+            map.entry("out").or_insert(p);+        }+    }+    crate::verbs::dispatch(ctx, "swx_export", &a)+}++/// The extra guidance every export response carries in v0.3: which formats this+/// bridge has actually SEEN work, on a real install.+pub fn export_format_note() -> Value {+    json!({+        "provenModelFormats": PROVEN_MODEL_FORMATS,+        "refusedForParts": REFUSED_FOR_PARTS,+        "blockedFormats": BLOCKED_FORMATS,+        "note": "Verified on SOLIDWORKS Design Professional for Makers 2026 (3DEXPERIENCE \+                 R2026x) on 2026-09-02 by exporting a real solid and checking the bytes on \+                 disk. DXF and DWG are DRAWING formats — they are refused for a part and are \+                 expected to work from a .slddrw. VRML (.wrl) hangs SOLIDWORKS on a modal \+                 option sheet, so this bridge refuses it outright.",+    })+}++/// `swx_run_macro` — run a SOLIDWORKS VBA macro through+/// `ISldWorks::RunMacro2`.+///+/// SCAFFOLDING, and labelled as such: the COM signature is written from+/// Dassault's documentation and CodeStack's worked examples (which confirm both+/// that `.swp` is plain-text editable and that `RunMacro2` works from a+/// standalone executable), but it has NOT been run against a live SOLIDWORKS+/// yet. `docs/FUSION-PARITY-REPORT.md` grades it accordingly and the response+/// says so in its own `_hint`, because a verb that has never executed and a+/// verb that has are not the same thing and the report exists to keep that+/// distinction.+///+/// THE GATE. Every other write in this bridge is bounded by two questions — is+/// the document ours, is the destination clear — and a macro answers neither.+/// It is a VBA project with the whole SOLIDWORKS API in scope and the+/// filesystem behind it: it can model, save over anything, batch-export, delete+/// or quit, to documents this bridge has never seen. Nothing about the CALL+/// predicts that. So `Kind::RunMacro` is always gated and there is no safe case+/// carved out of it: running one requires the same opt-in chain as any write to+/// the user's data — the process started with `SWX_ALLOW_USER_WRITES=1`, plus+/// `allowUserWrites:true`, `confirm:true` and a `reason` on the call. In the+/// default posture this verb refuses, always. What is being authorized is+/// arbitrary code execution on somebody's desktop, and the only honest gate for+/// that is the human saying so each time.+pub fn run_macro(ctx: &Ctx, args: &Value) -> Value {+    gate!(ctx);+    let path = match arg_str(args, "path") {+        Some(p) => p.to_string(),+        None => {+            return err(+                "path is required",+                "The macro file: .swp (VBA project), .swb (older binary) or a compiled .dll. \+                 swx_find_files locates candidates. A bundled starting point ships with the \+                 bridge at resources/macros/adom-hello.swp — see the SKILL.",+            )+        }+    };+    // A macro is identified by module AND procedure. `RunMacro2` needs both,+    // and the SOLIDWORKS default for a recorded macro is `Main` in `main`.+    let module = arg_str(args, "module").unwrap_or("main").to_string();+    let procedure = arg_str(args, "procedure").or_else(|| arg_str(args, "proc")).unwrap_or("main").to_string();++    // ALWAYS GATED, with no carve-out, and gated FIRST. See+    // `writes::Kind::RunMacro`. Authorization precedes even the existence check+    // below: an unauthorized caller learning whether a given path exists on+    // somebody's disk is a small leak, but it is a leak through the one verb+    // whose whole point is that nothing about it is bounded — and the ordering+    // rule ("decide before you act, and before you look") is the same one whose+    // absence let swx_close_all_documents discard documents on its way to+    // returning a refusal.+    let grant = match crate::writes::authorize_in(+        ctx,+        args,+        "swx_run_macro",+        crate::writes::Kind::RunMacro,+        None,+        None,+    ) {+        Ok(g) => g,+        Err(e) => return e,+    };+    // The macro must EXIST before SOLIDWORKS is asked for it: RunMacro2 on a+    // missing path returns a bare error code, and "2" is not a useful answer to+    // a caller who mistyped a filename.+    if !std::path::Path::new(&path).exists() {+        return err_code(+            "macro_not_found",+            format!("no macro at {path}"),+            "Give the full path to the .swp/.swb/.dll. swx_find_files searches disk. The check \+             happens here because RunMacro2 answers a missing file with the same numeric code it \+             uses for a macro that failed to compile.",+        );+    }+    let job = ctx.jobs.start("run_macro", format!("Running {module}.{procedure}"), 60);+    let started = std::time::Instant::now();+    let mut call_args = crate::writes::with_grant(json!({}), &grant);+    if let Value::Object(m) = &mut call_args {+        m.insert("path".into(), Value::from(path.clone()));+        m.insert("module".into(), Value::from(module.clone()));+        m.insert("procedure".into(), Value::from(procedure.clone()));+    }+    match ctx.call("run_macro", call_args, 280) {+        Err(e) => sidecar_error(e),+        Ok(r) => {+            crate::ledger::record_time("swx_run_macro", started.elapsed().as_secs_f64());+            crate::ledger::record(+                "macro_run",+                json!({+                    "path": path,+                    "module": module,+                    "procedure": procedure,+                    "runError": r.get("runError"),+                    "reason": arg_str(args, "reason"),+                }),+            );+            ok_merge(r, json!({+                "progress": job.finished(),+                "windowEtiquette": "background",+                "_hint": "The macro ran inside SOLIDWORKS with the full API in scope — this \+                          bridge cannot tell you what it did. Check the result yourself: \+                          swx_docs for documents it opened or closed, swx_document_info and \+                          swx_get_parameters for changes to a model, swx_rebuild_check for \+                          errors it left behind. The macro is unloaded afterwards \+                          (swRunMacroUnloadAfterRun), so editing the .swp and running it again \+                          picks up the new version. NOT YET PROVEN ON A LIVE MACHINE: this verb \+                          is scaffolding written from the documented RunMacro2 signature — if it \+                          misbehaves, that is worth reporting.",+            }))+        }+    }+}
src/writes.rsadded+18
@@ -0,0 +1,452 @@+//! THE CHOKE POINT: one place that decides whether this bridge may write.+//!+//! Five rounds of adversarial review found five Critical defects, and all five+//! were the same shape — the bridge writing to something the user owns, through+//! a route whose guard had been forgotten:+//!+//! | Round | The route that was not guarded |+//! |---|---|+//! | 2 | `swx_run_script` built geometry into the user's open document |+//! | 3 | `targetDocument` authorized one document; the com host changed another |+//! | 4 | a title matched two open documents; `save_as` renamed the user's |+//! | 5 | `close_doc {save:true}` was an ungated `Save3`; `save_as`/`export`/`pack_and_go` silently overwrote existing files |+//!+//! Gating each route failed five times because there is always another route.+//! So the posture is inverted: **writes are DENY-BY-DEFAULT**, and every one of+//! them — every verb, and independently the com host — passes through+//! [`authorize`]. Two conditions must hold, with no per-verb exceptions:+//!